E
ecchymosis. An extravasation of blood or slight hemorrhage under the skin resulting in a purplish patch.
echinococcus. The larval stage of the dog tapeworm, occurring also in human organs or tissues.
ectomy. To cut out, as in prostatectomy, removal of a part or all of the prostate.
eczema. Inflammation of the skin (acute or chronic, moist or dry), accompanied by itching and burning.
edema. Accumulation of serum in the cellular tissue.
edematous. Relating to edema.
effusion. Escape of fluid from within, out.
embolism. The obstruction of a blood vessel by an embolus cleavage.
embolus. A plug composed of detached clot in the circulation.
embryonic. Rudimentary.
emigration. The outward passage of a wandering cell through the walls of a blood-vessel.
empyema. Pus in a cavity.
en or endo. Within, as in endocardium, inner lining of the heart.
encapsule. To inclose in a sheath.
endermatically. Within or through the skin.
endoneural. Within the nerve.
endosteum. Membrane covering bone surface in the medullary cavity.
endothelial. Pertaining to or consisting of endothelium. A lining cavity not communicating with the outer air.
enteroclysis. A high enema.
enterostomy. Establishing an artificial anus through the abdominal wall.
epidermis. The outer layer of the skin constituting the outer investment of the body.
epiphyseal. Pertaining to the epiphysis.
epiphysis. A piece of bone that in early life is separated from a long bone by cartilage, but later becomes part of the bone.
epithelial. Pertaining to epithelium.
epithelioma. A cancerous growth originating from squamous epithelium.
epithelium. The cells covering all cutaneous and mucous surfaces, together with the secreting cells of glands developed from the ectoderm.
erysipelas. An acute specific inflammation of the skin and subcutaneous tissues, accompanied by fever and constitutional disturbances. Caused by the streptococcus erysipelatos.
erythema. Redness of the skin.
eschar. A scar.
escharotic. A substance producing an eschar.
esia. Sensation, as in anesthesia, loss of sensation.
ethyl bromide. A colorless liquid, used for both general and local anesthesia.
ethyl chloride. A colorless liquid, whose spray produces local anesthesia.
etiology. Cause as related to disease.
eucaine. A synthetic compound capable of producing local anesthesia.
evacuated. Removal of waste material from the body.
evaporation. Turning into vapor.
eversion. Turning outward. Turning back an eyelid so as to expose the conjunctiva. Turning the inner border of the foot outward.
ex. Out of or from, as in exostosis, a bony outgrowth.
exacerbation. Increased severity of a disease or of its symptoms.
excretion. The product of a gland or of cells not useful to the economy, in contradistinction to secretion.
excoriation. Removal of the superficial protective layer of the skin or mucous membrane.
exfoliate. To strip off in layers. To desquamate.
exostosis. A bony tumor springing from bone.
extravasation. Effusion of fluid into the tissues.