c.1400, from Gk. oidema (gen. oidematos) "a swelling tumor," from oidein "to swell," from oidos "tumor, swelling," from PIE *oid- "to swell;" cf. L. aemidus "swelling," O.N. eista "testicle," O.E. attor "poison" (that which makes the body swell), and the first element in Oedipus.
Main Entry: ede·ma Variant: or chiefly Britishoe·de·ma/i-'dE-m&/ Function: noun : an abnormal excessaccumulation of serous fluid in connective tissue or in a serous cavity called also dropsy
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.