Try Our Apps


Avoid these words. Seriously.


or oedema

[ih-dee-muh] /ɪˈdi mə/
noun, plural edemas, edemata
[ih-dee-muh-tuh] /ɪˈdi mə tə/ (Show IPA).
effusion of serous fluid into the interstices of cells in tissue spaces or into body cavities.
Plant Pathology.
  1. a small surface swelling of plant parts, caused by excessive moisture.
  2. any disease so characterized.
Origin of edema
1490-1500; < New Latin oedēma < Greek oídēma a swelling, equivalent to oidē- (variant stem of oideîn to swell) + -ma noun suffix
Related forms
[ih-dem-uh-tuh s, ih-dee-muh-] /ɪˈdɛm ə təs, ɪˈdi mə-/ (Show IPA),
[ih-dem-uh-tohs, ih-dee-muh-] /ɪˈdɛm əˌtoʊs, ɪˈdi mə-/ (Show IPA),
pseudoedema, noun, plural pseudoedemata. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
Examples from the Web for edema
Historical Examples
  • There is edema of the ureal tract, apparently from transudation of serum.

    Glaucoma Various
  • Pneumonia is a frequent complication and edema a terminal event.

    Scurvy Past and Present Alfred Fabian Hess
  • On the first two occasions, one eye was closed completely by the edema.

    Psychotherapy James J. Walsh
  • It is used in certain cases of nephritis when edema is present.

    Dietetics for Nurses Fairfax T. Proudfit
  • The patient had three convulsions and died with edema of lungs about 30 hours after the attack of ventricular fibrillation.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • The edema is greater, there may be signs of edema of the lungs, effusions into the serous cavities may occur.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • Striking cyanosis is an early symptom, while there is little if any dyspnea and edema.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • There comes a time when all forms of exercise must be prohibited on account of the dyspnea, edema, dizziness, etc.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • It seems unwise to keep such a patient in bed, even though the edema be considerable.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • Autopsy: Liver slightly congested; a small portion of the intestine showed congestion and edema; other organs normal.

    The Toxicity of Caffein William Salant
British Dictionary definitions for edema


noun (pl) -mata (-mətə)
the usual US spelling of oedema
Derived Forms
edematous (ɪˈdɛmətəs), edematose, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for edema

c.1400, from medical Latin, from Greek oidema (genitive oidematos) "a swelling tumor," from oidein "to swell," from oidos "tumor, swelling," from PIE *oid- "to swell;" cf. Latin aemidus "swelling," Armenian aitumn "a swelling," Old Norse eista "testicle," Old English attor "poison" (that which makes the body swell), and the first element in Oedipus.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
edema in Medicine

edema e·de·ma (ĭ-dē'mə)
n. pl. e·de·mas or e·de·ma·ta (-mə-tə)
An accumulation of an excessive amount of watery fluid in cells, tissues, or serous cavities.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
edema in Science
An accumulation of an excessive amount of watery fluid in cells, tissues, or body cavities. Edema can be mild and benign as in pregnancy or prolonged standing in the elderly, or a serious sign of heart, liver, or kidney failure, or of other diseases.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Nearby words for edema

Difficulty index for edema

Most English speakers likely know this word

Word Value for edema

Scrabble Words With Friends