"Ephemerous" is a word in ENGLISH

A genus consisting mostly of tropical perennial herbs (Commelina), having ephemeral flowers.

A neuropterous insect of the genus Ephemera and related genera, of many species, and inhabiting fresh water in the larval …

A genus of insects including the day flies, or ephemeral flies. See Ephemeral fly, under Ephemeral.

Short-lived; existing or continuing for a short time only.

Anything lasting but a day, or a brief time; an ephemeral plant, insect, etc.

Beginning and ending in a day; existing only, or no longer than, a day; diurnal; as, an ephemeral flower.

One of the ephemeral flies.

Ephemeral.

One of the ephemeral flies.

A prefix, meaning upon, beside, among, on the outside, above, over. It becomes ep-before a vowel, as in epoch, and …

Occurring once an hour; continuing an hour; hourly; ephemeral.

Like an insect; small; mean; ephemeral.

kiráb-kógon - A sudden flame or light, spark, flash, flare-up; transient, transitory, momentary, ephemeral, not lasting or enduring, passing quickly, …

An American endogenous plant (Tradescantia Virginica), with long linear leaves and ephemeral blue flowers. The name is sometimes extended to …