Dictionary of Medical Terms

Gain a better understanding of medical terminology by searching our dictionary of more than 1,300 terms.

Filter By Alphabet

All terms that start with the letter E

Sort By:

erythema infectiosum

A viral infection most common in children that begins with a red, warm rash on the face, along with some…
erythema multiforme

An eruption of flat or raised spots of skin as a result of hypersensitivity to certain drugs or allergies.
erythema nodosum

The sudden appearance of tender raised nodes on the lower limbs as a result of an infection, hypersensitivity to certain…
erythrocyte

Red blood cell.
Escherichia coli

A type of common bacteria normally found in the colon. Some strains that cause diarrhea are acquired during travel.
esophagitis

Inflammation of the esophagus, often caused from a reflux of acid from the stomach.
esophagus

The tube through which food passes from the pharynx to the stomach.
estrogen

Female sex hormone.
eustachian tube

The narrow tube connecting the nose and middle ear to allow air pressure in the middle ear to equalize with…
exacerbate

Cause something to increase in severity. To make more intense, irritate.
exanthem

Skin rash.
excise

To remove by cutting.
exocrine glands

Glands that secrete chemicals externally, either through a tube or duct.
expectorant

A substance that loosens mucus so it’s more easily cleared from the respiratory passages.