Medical Word Parts - Letter: e

Term	Definition
ec-	outside, out
echin/o	spiny, prickly
echo-	reflected sound
eco-	environment
-ectasis	dilation, stretching
ecto-	out, outward
-ectomy	removal, excision
ectr/o	congenital absence
-edema	swelling
ele/o	oil
electro/o	electricity
embryo-	related to embryo
-emesis	vomiting
-emia	condition of the blood
emmetr/o	correct measure
en-	in, within
enanti/o	opposed, opposite
encephal/o	brain
end-	within, inner
endo-	within
endocardi/o	endocardium (inner lining of the heart)
endometri/o	endometrium (mucous membrane lining the uterus)
ent-	within, inside
enter/o	small intestines
eosin/o	rose-colored
epi-	above, on, following
epididym/o	epididymis (structure within the scrotum that stores sperm)
epiglott/o	epiglottis (cartilage that prevents food from entering the trachea)
episi/o	vulva
epitheli/o	epithelium
equi-	equal
erethism/o	irritation
erg-	work
ergo-	work, energy
erythr/o	red
erythrocyt/o	red blood cell
eschar/o	scab
eso-	inward
esophag/o	esophagus
esthes/o	nerve sensation, feeling
-esthesia	sensation, feeling
eti/o	cause
eu-	normal, good
eury-	wide, broad
ex-	out, away from
exo-	outside, outward
extra-	outside of, beyond