or oe·de·ma

[ ih-dee-muh ]
/ ɪˈdi mə /

noun, plural e·de·mas, e·de·ma·ta [ih-dee-muh-tuh] /ɪˈdi mə tə/. Pathology.

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 formse·dem·a·tous [ih-dem-uh-tuh s, ih-dee-muh-] /ɪˈdɛm ə təs, ɪˈdi mə-/, e·dem·a·tose [ih-dem-uh-tohs, ih-dee-muh-] /ɪˈdɛm əˌtoʊs, ɪˈdi mə-/, adjectivepseu·do·e·de·ma, noun, plural pseu·do·e·de·ma·ta.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for edema

British Dictionary definitions for edema


/ (ɪˈdiːmə) /

noun plural -mata (-mətə)

the usual US spelling of oedema
Derived Formsedematous (ɪˈdɛmətəs) or 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

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

Medicine definitions for edema


[ ĭ-dēmə ]

n. pl. e•de•mas

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.

Science definitions for edema


[ ĭ-dēmə ]

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.