Prefix Dictionary E

Meanings of medical prefixes



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Words Prefixes Suffixes Roots
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e- [ Latin e- out of, from] (1) out (epilation); (2) lacking, not (ecaudate).

ec- [ Latin ex = Greek ek out of, from] Out, out of (eczema).

ec- or eco- or oec- or oeco- or oiko- [ Greek oikos habitation] (1) habitation; (2) relating to the environment (ecology).

echin- or echino- [ Greek echinos hedgehog or sea urchin] Spiny, pointed (echinate).

echo- [ Greek echo echo] Denotes repetition or echo (echolalia, echopraxia, echolocation).

ect- or ecto- [ Greek ecto outside] Outside, outer (ectotherm, ectopia, ectopic, ectopotomy, ectotoxemia).

ef- [ Latin ex out of, from] Out, away (efferent). Before roots and suffixes beginning with f the prefix ex- becomes ef-.

elaeo- or elaio- or eleo- [ Greek elaion oil] Denotes oil or oiliness (Elaeocarpus = a genus of evergreen plants with oily fruit).

elast- or elasto- [ Greek elastikos elastic] Elastic (elastin).

eleuther- or eleuthero- [ Greek eleutheros free] Free (Eleutherodactylus).

elytr- or elytro- [ Greek elytron vagina] Vagina (elytritis, elytroptosis, elytrostenosis).

eme- or emet- or emeto- [ Greek emein to vomit] Vomiting (emetology).

emme- or emmen- or emmenio- or emmeno- [ Greek emmena menses] Menses (emmenagogue).

em- or en- [ Latin im-, in-] (1) in, into, within, inside (empyema); (2) to become (encyst).

en- or eno- See: oen-).

encephal- or encephalo- [ Greek enkephalos brain] Brain, having to do with the brain (encephalitis).

end- or endo- or ento- [ Greek endon within] Within, inside (endotherm).

enter- or entero- [ Greek enteron intestine] Relating to the intestines (enteritis, enterology, enteropathy, enterorrhaphy, enterorrhexis).

entom- or entomo- [ Greek entomon insect] Insect(s) (entomology, entomophagous).

eo- [ Greek eos dawn] Denotes dawn; can mean (1) early like the dawn (Eocene); or (2) rose-colored like the dawn (eosin).

ep- or eph- or epi- [ Greek epi upon] Upon (epidermis; epiglottis; epiphysis).

ependym- or ependymo- [ Greek ependyma wrap] Denotes the ependyma (ependymitis).

epididym- or epididymo- [epi- + didym-] Denotes the epididymis (epidydymoorchitis).

epilepto- [ Latin epilepsia] Epilepsy (epileptology).

episio- [ Greek episeion pudenda] Vulva (episioplasty).

equi- [ Latin aequus level, even, equal, like] Equal, alike (equicaloric).

erg- or ergo- [ Greek ergon work] Work (Homo ergaster).

erythr- or erythro- [ Greek erythros red] Red (erythema, erythrocyte).

esophag- or esophago- (British: oesophago-) [ Greek oisophagos esophagus] Esophagus (esophagostenosis).

esthesi- or esthesio- (British: aesthesi- or aesthesio-) [ Greek aisthesis sensation, feeling] Denotes sensation (esthesiology, esthesiometry, esthesiophysiology).

eth- or etho- (1) ether; (2) ethyl.

ethmo- [ Greek ethmos sieve] (1) sieve (ethmoid); (2) ethmoid bone (ethmomaxillary).

ethn- or ethno- [ Greek ethnos nation] Denotes race or nation (ethnology).

etio- (British: aetio-) [ Greek aetia cause] (1) cause (etiology); (2) created by the breaking down of the chemical compound specified by the stem (etioporphyrin).

eu- [ Greek eus good] True, pure, well (eugenics).

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eury- [ Greek eurys wide] Wide (eurybathic, euryhaline, eurypterid, eurythermal, eurytopic).

ex- or exo- [ Latin ex out of, from, because of, as a result of] Out of, outside of; from; because of (excision, exine, exosepsis, exoskeleton, exotic).

exa- [prefix in International System of Units] 1018 (exaFLOPS).

excit- or excito- [ Latin excitare to excite] Stimulating (excitomuscular).

exter- or extero- [ Latin exterus outer, external, outward, far, foreign] External (exteroceptor).

extra- [ Latin extra outside of, beyond, beside, except] On the outside, beyond (extradural).

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Words Prefixes Suffixes Roots
a |  b  |  c  |  d  |  e  | f-g | h | i-j
k-l | m | n | o | p-q | r-s | t | u-z

Browse prefixes >>