Ephemera

e-fem'e-ra, re. (Med.) A fever of one day's continuance only. (Entom.) The day-fly, May-fly; strictly, a fly that lives one day only, applied also to short-lived insects. — Ephem'eral, Anything which lasts but a day or a very short time. — Ephem'eral, -eric, -erous, -rus, a. Beginning and ending in a day; diurnal; existing for a short time only. — Ephem^eris, n.; pi. Ephemerides, -mer/'Tdez. A journal; diary. (Astron.) An astronomical almanac; a tabular statement of the a igned places of a planet, comet, etc., on succe ive days.