Medical Word Parts - Letter: m

Term	Definition
macro-	large
macul/o	spot
mal-	bad, deficient
-malacia	softening
mamm-	breast
mamm/o	breast
mandibul/o	mandible (lower jaw bone)
-mania	obsession with
-masesis	chewing, mastication
mast/o	breast
mastoid/o	rounded protrusion of bone behind the ear
maxill/o	upper jawbone formed from the fusion of two maxillary bones
meat/o	a natural opening
medi/o	middle
medull/o	medulla, marrow
mega-	large, great
-megaly	enlargement
mel/o	limb
melan/o	black, dark
meli-	honey, sugar
men/o	menstruation, menses
mening/o	membranes
ment/o	mind
-mer	smallest unit of a repeating structure, member of a particular group
mer/o	part, partial
mes-	middle, mean
meso-	middle
meta-	beyond, change
-meter	measurement, instrument to measure
method/o	procedure, technique
metr/o	uterus (womb)
-metry	to measure
micro-	small
milli-	one thousandth
-mimesis	imitation, simulation
mio-	smaller
mis/o	opposite, aversion
-mnesia	memory
mogi-	difficult
mon/o	single, one
morph/o	shape, form
mort/o	death
mot-	move
-motor	motion
muc/o	mucus
multi	many, much
muscul/o	muscle
my/o	muscle
myc/o	fungus
myel/o	spinal cord, bone marrow
myocardi/o	myocardium (heart muscle)
myring/o	tympanic membrane (eardrum)
myx/o	mucus