EPHEMERAL

ephemeral. Ephemeral, a. daily, lasting a day

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E‐phem″er‐al (?), a. 1. 1. Beginning and ending in a day; existing only, or no longer than, a day; diurnal; as, an ephemeral flower.
2. 2. Short-lived; existing or continuing for a short time only. “Ephemeral popularity.” V. Knox.
Sentences not of ephemeral, but of eternal, efficacy. Sir J. Stephen. Ephemeral fly (Zoöl.), one of a group of neuropterous insects, belonging to the genus Ephemera and many allied genera, which live in the adult or winged state only for a short time. The larvæ are aquatic; — called also day fly and May fly.