EPHEMERAE
EPHEMERA
ephemera
(noun) something transitory; lasting a day
EPHEMERON
ephemeron, ephemeral
(noun) anything short-lived, as an insect that lives only for a day in its winged form
Source: WordNet® 3.1
EPHEMERA
E*phem"e*ra, n. Etym: [NL., fr. Gr.
1. (Med.)
Definition: A fever of one day's continuance only.
2. (Zoöl.)
Definition: A genus of insects including the day flies, or ephemeral flies.
See Ephemeral fly, under Ephemeral.
EPHEMERON
E*phem"e*ron, n.; pl. Ephemera. Etym: [NL. See Ephemera.] (Zoöl.)
Definition: One of the ephemeral flies.
Source: Webster’s Unabridged Dictionary 1913 Edition