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[ih-fem-er-uh l] /ɪˈfɛm ər əl/

lasting a very short time; short-lived; transitory:
the ephemeral joys of childhood.
lasting but one day:
an ephemeral flower.
anything short-lived, as certain insects.
lasting for only a short time; transitory; short-lived: ephemeral pleasure
a short-lived organism, such as the mayfly
a plant that completes its life cycle in less than one year, usually less than six months

1560s; see ephemera + -al (1). Related: Ephemerality. Originally of diseases and lifespans; extended sense of “transitory” is from 1630s.


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