Ephemera
Pronunciation : E*phem"e*ra
Part of Speech : n.
Etymology : [NL., fr. Gr.
Definition : 1. (Med.)
Defn: A fever of one day's continuance only.
2. (Zo?l.)
Defn: A genus of insects including the day flies, or ephemeral flies. See Ephemeral fly, under Ephemeral.
Source : Webster's Unabridged Dictionary, 1913