Source : Webster's Revised Unabridged Dictionary (1913)

Edema \E*de"ma\, n. [NL.] (Med.)
   Same as {[oe]dema}.

Source : WordNet®

edema
     n : swelling from excessive accumulation of serous fluid in
         tissue [syn: {oedema}, {hydrops}, {dropsy}]
     [also: {oedemata} (pl), {edemata} (pl)]