- effusion of serous fluid into the interstices of cells in tissue spaces or into body cavities.
- Plant Pathology.
- a small surface swelling of plant parts, caused by excessive moisture.
- any disease so characterized.
Origin of edema
- the usual US spelling of oedema
Word Origin and History for pseudoedema
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.
- A puffiness of the skin that is not the result of an accumulation of fluid.
- An accumulation of an excessive amount of watery fluid in cells, tissues, or serous cavities.
- 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.