nounpl. -·mas or -·mata
- an abnormal accumulation of fluid in cells, tissues, or cavities of the body, resulting in swelling
- a similar swelling in plant cells or tissues
Origin of edemaModern Latin from Classical Greek oid?ma, a swelling, tumor from Indo-European base an unverified form oid-, to swell from source Old English ator, poison
nounpl. e·de·mas, or e·de·ma·ta also oe·de·mas or oe·de·ma·ta
- Medicine An excessive accumulation of serous fluid in tissue spaces or a body cavity.
- Botany A condition of plants characterized by blisterlike swellings on the leaves or other parts, caused by an accumulation of water.
Origin of edemaMiddle English ydema from Greek oidēma a swelling from oidein to swell
(plural edemas or edemata)
From Ancient Greek οἴδημα (oidēma, “swelling”), from οἰδέω (oideō, “I swell”).