Definitions for: Ephemera

[n] something transitory; lasting a day

Webster (1913) Definition: E*phem"e*ra, n. [NL., fr. Gr. ? a day fly, fr. ?
daily, lasting but a day; ? over + ? day.]
1. (Med.) A fever of one day's continuance only.

2. (Zo["o]l.) A genus of insects including the day flies, or
ephemeral flies. See Ephemeral fly, under Ephemeral.

See Also: time