Home » Enzymologist » Eosin b » Eozoic » Special:Index/E » Ephemera
1. (Science: medicine) a fever of one day's continuance only.
2. (Science: entomology) a genus of insects including the day flies, or ephemeral flies. See ephemeral fly, under ephemeral.
Origin: NL, fr. Gr. A day fly, fr. Daily, lasting but a day; over _ day.