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Medical Word Parts For: m

Word PartDefinitionCategory
MAmental age nervous
macerationSoftening of a solid by soaking in a liquid.General
macrocephalyAbnormally large head.Skeletal
macrocheiliaAbnormally large lips.General
macrodactylyAbnormally large fingers or toes.General
macrodontiaAbnormally large teeth.General
macroglossiaEnlargement of the tongue, which may be congenital or may develop as a result of a tumor or edema, or in association with hyperpituitarism. General
macrognathiaAbnormally large jaw.General
macromeliaAbnormally large arms or legs.General
macrophageA type of white blood cell that is part of the immune system. It digests targeted cells and cellular debris.lymphatic
macrostomiaAbnormally large mouth.General
macul/ospoteyes and ears
macula luteaAn oval, yellow spot in the retina, 3 to 5 mm in diameter It is devoid of retinal blood vessels, except in its periphery.Eyes And Ears
macularDenoting the central retina.Eyes And Ears
macular degenerationDegenerative changes in the retina usually of older adults which results in a loss of vision in the center of the visual field.Eyes And Ears
maculeSmall flat skin spots on the skin.integumentary
maculopathyAny pathologic condition of the macula lutea.Eyes And Ears
madarosisLoss or underdevelopment of eyelashes or eyebrows.General
maggotLarva of a fly.General
magnetic resonance imagingNon-invasive method of imaging internal anatomy a strong magnetic field and pulses of radiofrequency energy. Effective for imaging soft tissue, organs and joints.General
mal-bad, deficientgeneral
malabsorptionInadequate intestinal absorption of nutrients.Digestive
malaiseA general feeling of illness or discomfort or feeling unhealthy.general
malariaA serious parasitic disease caused by mosquito bites. Symptoms include chills, flu-like symptoms, fever, vomiting, diarrhea, and jaundice. lymphatic
malformationAn abnormal physical structure in the body.General
malignant melanomaThe most dangerous form of skin cancer. Melanomas are usually brown or black, but can appear pink, tan, or even white.integumentary
malingeringFaking symptoms for personal gain or attention.General
malleolusThe bony prominence on either side of the ankle.skeletal
malleusThe largest and outermost of the three ossicles of the ear. Also called hammer. Eyes And Ears
malnutritionA condition caused by insufficient intake of nutrients.Digestive
malocclusionFaulty contact between the upper and lower teeth when the jaw is closed.Skeletal
malpracticeFailure to render proper professional services through reprehensible ignorance or negligence especially when injury occurs.General
malunionFaulty alignment of broken bone fragments.Skeletal
mammary glandMilk producing gland.Reproductive
mammographyRadiographic examination of the breast. lymphatic
mammoplastyPlastic surgery of the breasts.Reproductive
mandibleThe large, u-shaped bone that supports the lower teeth, forming the lower jaw. Skeletal
mandibul/omandible (lower jaw bone)skeletal
maniaAn abnormally excessive elated, enthusiastic mental state.Nervous
-maniaobsession withnervous
manometerA device for measuring gas or liquid pressure.General
manubriumThe uppermost part of the sternum.skeletal
MAPmean arterial pressure cardiovascular
marsupialization A surgical procedure for treating cysts. The cyst is widely opened creating a pouch.General
-masesischewing, masticationdigestive
masseter muscleThe thick rectangular muscle in the cheek that functions to close the jaw.Muscular
mastalgiaBreast pain.reproductive
mastectomySurgical procedure to remove one or both breasts. General
masticationThe process of chewing and grinding food in the mouth. Digestive
mastocytomaA solid tumor consisting of a dense infiltration of mast cells.General
mastocytosisDisorders characterized by the abnormal increase of mast cells in organs and tissues.General
mastodyniaPain in the breast.General
mastoid/orounded protrusion of bone behind the earSkeletal
mastoidectomySurgical removal of mastoid air cells in the hollow, air-filled spaces in the skull behind the ear. eyes and ears
mastoiditisInflammation of the mastoid air cells It is usually a complication of otitis media. Eyes And Ears
mastopexyBreast lift surgery.reproductive
masturbationSexual self-gratification.General
maxill/oupper jawbone formed from the fusion of two maxillary bonesskeletal
maxillaOne of a pair of irregularly shaped bones that form the upper jaw.Skeletal
maxillofacialPertaining to the jaws and face.Skeletal
MBCmaximum breathing capacityrespiratory
MBDminimal brain dysfunction nervous
mcmCi millicurie
MCHmean corpuscular hemoglobin cardiovascular
MCVmean corpuscular volume cardiovascular
MDmuscular dystrophy muscular
MDImetered-dose inhaler respiratory
measlesAn acute, contagious viral disease characterized by eruption of red spots on the skin, fever, and catarrhal symptoms. Usually occurs in childhood.General
meat/oa natural openinggeneral
meatusAn opening or passage.General
medialToward the body's midlinedirectional
median nerveA major nerve of the arm, suppling sensory and motor innervation to parts of the forearm and hand. Nervous
mediastinalPertaining to a median septum or space between two parts of the body.Skeletal
mediastinitisInflammation of the mediastinum.General
mediastinumThe central section of the chest cavity, containing the heart, arteries, veins, esophagus, trachea, bronchi, lymph nodes and thymus.Respiratory
medicareFederal program that provides health insurance benefits to persons over the age of 65 and others eligible for Social Security benefits. It consists of hospital insurance (Part A) and supplementary medical insurance (Part B).General
meditationA state of focusing on a single thing, eliminating influences of external stimuli.General
medull/omedulla, marrowgeneral
medullaThe inner region of an organ or body structure.General
medulla oblongataThe lower portion of the brain stem. Medulla oblongata serves as a relay station between the brain and the spinal cord, and contains centers for regulating respiratory, vasomotor, cardiac, and reflex activities. Nervous
medulloblastomaA malignant neoplasm that may be classified either as a glioma or as a primitive neuroectodermal tumor of childhood.General
mega-large, greatSkeletal
megacolonExtreme dilatation of the colon.Digestive
megaloblastic anemiaA blood disorder in which the number of red blood cells is too low due to abnormally large red blood cell size. Can also be called vitamin B-12 or folate deficiency anemia.Cardiovascular
megaloblastsRed blood cell precursors that are abnormally large and dysfunctional. Found in patients with pernicious anemia. Cardiovascular
megalomaniaDelusions of grandeur or exaggerated personal importance, wealth or power.Nervous
meibomian glandsThe small sebaceous glands located on the inner surface of the eyelids between the tarsal plates and conjunctiva. Eyes And Ears
meiosisA type of cell division in which a nucleus divides into four daughter nucleiGeneral
melan/oblack, darkintegumentary
melanomaA malignant, rapidly growing neoplasm derived from cells that are capable of forming melanin, which may occur in the skin of any part of the body, in the eye, or, rarely, in the mucous membranes of the genitalia, anus, oral cavity, or other sites. Integumentary
melanosisDisorders of increased melanin pigmentation that develop without preceding inflammatory disease. Integumentary
melatoninA hormone produced by the pineal gland. It plays a role in the regulation of sleep, mood, and reproduction. Endocrine
melenaThe black, tarry, foul-smelling feces that contain degraded blood. digestive
meli-honey, sugardigestive
membraneThin layers of tissue which covers parts of the body, separates adjacent cavities, or connects adjacent structures. General
memoryThe mental functions of learning, retention, recall and recognition.Nervous
men/omenstruation, mensesreproductive
menarcheThe first menstrual period.reproductive
meningesThe three membranes that envelop the brain and the spinal cord. Nervous
meningiomaA relatively common neoplasm of the central nervous system.Nervous
meningitisAn acute inflammation of the protective membranes covering the brain and spinal cord. May be viral or bacterial.nervous
meningoceleSurgery to repair birth defects of the spine and spinal membranes.nervous
meniscusCrescent-shaped cartilage inside the knee joint that absorb shock and stabilize the joint.Skeletal
menopauseThe permanent cessation of menstruation.Reproductive
menorrhagiaExcessive uterine bleeding during menstruation. Reproductive
mensesBlood and tissue discharged from the uterus periodically.Reproductive
menstrual cycleThe period from onset of one menstrual bleeding to the next in an ovulating female. The menstrual cycle is regulated by endocrine interactions of the hypothalamus; the pituitary gland; the ovaries; and the genital tract. Reproductive
menstruationThe (approximately) monthly discharge of blood and cellular debris from the uterus by nonpregnant women, occurring from puberty to menopause.Reproductive
mentholAn alcohol produced from mint oils or prepared synthetically. General
MEPmaximal expiratory pressurerespiratory
mEq/Lmilliequivalent per liter
-mersmallest unit of a repeating structure, member of a particular groupgeneral
mer/opart, partialgeneral
merkel cellsModified epidermal cells located in the stratum basale (the innermost layer of the epidermis). They are found mostly in areas where sensory perception is acute, such as the fingertips. Nervous
mes-middle, meangeneral
mesentericRelating to the double layer of peritoneum suspending the intestine from the posterior abdominal wall.Digestive
mesenteryA double layer of peritoneum that encloses the intestines and attaches them to the posterior abdominal wall.digestive
mesomorphicHaving a robust, muscular body build. General
meta-beyond, changegeneral
metabolismThe chemical reactions that occur within the cells, tissues or an organism.General
metacarpalsThe long bones in the hand located between the phalanges of the fingers and the carpal bones of the wrist.skeletal
metagenomeA collective genome representative of the many organisms, primarily microorganisms, existing in a community. General
metastasectomySurgery to remove one or more neoplasm metastases. General
metastasisThe spread of a cancer or other disease from one body part to another not directly connected with it. lymphatic
metatarsal bonesThe five long bones of the metatarsus, articulating with the tarsal bones proximally and the phalanges of toes distally. Skeletal
metatarsalgiaPain in the region of the metatarsus. Skeletal
metatarsalsFive long bones in the foot, located between the ankle and toes.skeletal
metatarsusThe part of the foot between the tarsus and the toes. Skeletal
-metermeasurement, instrument to measuregeneral
methenamineAn antibacterial compound most commonly used in the treatment of urinary tract infections.Urinary
method/oprocedure, techniquegeneral
metr/outerus (womb)reproductive
metritisInflammation of the uterus.Reproductive
metrorrhagiaAbnormal uterine bleeding that is not related to menstruation. Reproductive
-metryto measuregeneral
Mgmagnesium general
MHCmental health care
MImyocardial infarction cardiovascular
microbialRelating to microbes.General
microbiologyThe study of microorganisms.General
microbiotaThe full collection of microbes (bacteria, fungi, virus, etc.) that naturally exist within a specific environment.General
microcephalyAbnormal smallness of the head; a congenital abnormality Nervous
microcheiliaAbnormally small lips.General
micrococcusA genus of gram-positive, spherical bacteria found in soils and fresh water, and frequently on the skin of man and other animals. Integumentary
microdontiaAbnormally small teeth.Skeletal
microgliaA type of non-nervous tissue found in the central nervous system, that acts as a phagocyte at sites of neural damage or inflammation.General
micrognathismAbnormally small jaw. Skeletal
microstomiaA congenital defect of an abnormally small mouth.General
microsurgerySurgical procedures using microscope. General
microtiaA congenital deformity of the external ear.General
microvesselsThe finer blood vessels of the vasculature that are generally less than 100 microns in internal diameter. Cardiovascular
midwiferyThe practice of assisting women in childbirth. Reproductive
migraineModerate to severe, painful headache that may occur with symptoms like nausea, vomiting, fatigue and numbness.nervous
milli-one thousandthgeneral
-mimesisimitation, simulationgeneral
mindfulnessA psychological state of awareness.Nervous
miosisExcessive pupillary constriction. Eyes And Ears
mioticsDrugs causing contraction of the pupil. Eyes And Ears
MIPmaximal inspiratory pressurerespiratory
mis/oopposite, aversiongeneral
miscarriageCommon term for the loss of an embryo or fetus before the 20th week of pregnancy.. This term is longer accepted in clinical usage.Reproductive
mitesThey are minute animals related to the spiders, usually having transparent or semitransparent bodies. They may be parasitic on humans , producing various irritations of the skin. Integumentary
mitochondriaSemiautonomous, self-reproducing organelles that occur in the cytoplasm of eukaryotic cells.General
mitral valveThe valve between the left atrium and left ventricle of the heart. Cardiovascular
mitral valve prolapseAbnormal protrusion of mitral valve leaflets in the left atria during systole. Results in blood backflow, which causes systolic murmurs, arrhythmia and mitral valve insufficiency.Cardiovascular
mitral valve stenosisNarrowing of the passage through the mitral value. Caused by fibrosis and calcinosis. Rheumatic fever is a primary cause. Cardiovascular
MLDminimum lethal dose general
mmHgmillimeter of mercury
Mnmanganese general
modalityA factor that makes a patient's symptoms better or worse. General
molmolecular weight
molarThe most posterior teeth on either side of the jaw which are used for grinding.Skeletal
mon/osingle, onegeneral
monocytesLarge, phagocytic mononuclear leukocytes. Monocytes help other white blood cells remove dead or damaged tissues, attack cancer cells and regulate immunity response. Produced in the bone marrowCardiovascular
monorchismAbsence of one testis.Reproductive
monosomyThe existence in a cell of only one instead of the normal diploid pair of a particular chromosome.General
moralsStandards of conduct that distinguish right from wrong. General
morbidDiseased or abnormal.General
morbid obesityThe condition of weighing two or more times the ideal weight. In the body mass index, morbid obesity is defined as having a BMI greater than 40.0 kg/m2. General
morbidity The relative incidence of a particular diseaseGeneral
morph/oshape, formgeneral
morphineThe principal alkaloid in opium and the prototype opiate analgesic and narcotic. General
mortalityThe relative frequency of deaths in a specific population.General
morulaAn early embryo that is a compact mass.Reproductive
MRAmagnetic resonance angiography cardiovascular
MRImagnetic resonance imaging general
MRSAmethicillin resistant staph aureusgeneral
MSmultiple sclerosis nervous
MS (2)mitral stenosiscardiovascular
MSHmelanocyte stimulating hormoneendocrine
mucolipidosesA group of inherited metabolic diseases in which mucopolysaccharides and lipids accumulate in tissuesGeneral
mucositisAn inflammation of a mucous membrane, such as the lining of the mouth and throat.Digestive
mucous membraneThe moist lining of body cavities and hollow organs such as the mouth, the nose, the eyelids, the intestine and the vagina. General
mucusThe viscous secretion of mucous membranes. It contains mucin, white blood cells, water, inorganic salts, and exfoliated cells. General
multimany, muchgeneral
multiple sclerosisAn immune-mediated process in which the immune system attacks the myelin sheath that surrounds nerve fibers.nervous
mumpsAn acute viral infection characterized by swelling of the salivary glands, especially the parotids. Usually seen in children.General
muscular dystrophiesA heterogeneous group of inherited myopathies, characterized by wasting and weakness of the skeletal muscle. Muscular
muscular dystrophyA group of over thirty genetic diseases characterized by progressive degeneration of the skeletal muscles that control movement.muscular
mutationAny detectable and heritable change in the genetic material that causes a change in the genotype and which is transmitted to daughter cells and to succeeding generations. General
MVmitral valve cardiovascular
MVAmotor vehicle accident general
MVPmitral valve prolapsecardiovascular
MVVmaximal voluntary ventilationrespiratory
Mymyopia Eyes And Ears
myalgiaMuscle pain.Muscular
myasthenia gravisA chronic autoimmune disease characterized by weakness of the skeletal muscles.muscular
mycetomaA chronic progressive subcutaneous bacterial or fungal infection. General
mycologyThe study of fungi and fungus diseases.General
mycosisA fungal inflection.general
mydriasisAbnormal dilation of the pupil.eyes and ears
myel/ospinal cord, bone marrownervous
myelinA white fatty material that encloses certain axons and nerve fibers acting as an electrical insulator.Nervous
myelitisAn inflammation of the spinal cord.nervous
myelodysplastic syndromesA group of cancers in which immature blood cells in the bone marrow fail to mature and become healthy.Cardiovascular
myelographyA procedure that uses dye with x-rays or CT scans to assess the spinal cord,nervous
myiasisThe invasion of living tissues by dipterous larvae. General
myocardi/omyocardium (heart muscle)cardiovascular
myocardial infarctionPartial death of heart tissue caused by an obstructed blood supply. Commonly called "heart attack".Cardiovascular
myocardial ischemiaA disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart.Cardiovascular
myocarditisInflammation of the heart muscle. Caused by a wide range of infections and other problems.Cardiovascular
myocardiumThe heart muscle. Its contractions pump blood from heart to the lungs and systemic circulatory system.Cardiovascular
myoceleProtrusion of muscle substance through a hole in its sheathmuscular
myoclonusSudden, involuntary jerking of a muscle.muscular
myofascial releasePhysical therapy used to treat chronic pain in the tissues that surround and support muscles.muscular
myogenicOriginating in the muscles.Muscular
myolysisBreakdown of muscle tissue.muscular
myomaA benign neoplasm of the muscles.Muscular
myometriumThe smooth muscle coat of the uterus, which forms the main mass of the organ. Reproductive
myoparesisSlight muscle paralysis.muscular
myopiaNearsightedness. A condition where close objects appear clearly, but distant objects appear blurry.eyes and ears
myorrhaphySuture of muscle tissue or a muscle wound.muscular
myosarcomaA general term for a malignant neoplasm derived from muscular tissue. lymphatic
myositisInflammation of a muscle or muscle tissue. Muscular
myotoniaTonic muscle spasm or muscular rigidity.Muscular
myotonicPertaining to muscle tone.Muscular
myring/otympanic membrane (eardrum)eyes and ears
myringitisInflammation of the eardrum.Eyes And Ears
myringotomySurgical incision in the eardrum to relieve fluid pressure.eyes and ears
myxomaA benign neoplasm derived from connective tissue.General

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