Ephemera

[Fr. ephemere, from Gr. ephemeron epi, and hemera, a day.] One of the EPHEMERIDE, q. v. Ephemeral, a. Continuing or existing one day only; beginning and ending in a day; diurnal; short-lived; existing or continuing for a short time only. -n. A thing very short-lived; an ephemeral plant or production.