• synonyms


[ih-fem-uh-ron, -er-uh n]
noun, plural e·phem·er·a [ih-fem-er-uh] /ɪˈfɛm ər ə/, e·phem·er·ons.
  1. anything short-lived or ephemeral.
  2. ephemera, items designed to be useful or important for only a short time, especially pamphlets, notices, tickets, etc.
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Origin of ephemeron

1570–80; < Greek ephḗmeron short-lived insect, noun use of neuter of ephḗmeros; see ephemeral
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ephemeron

Historical Examples

  • The scent was so strong that the ephemeron was almost intoxicated by it.

    The Sand-Hills of Jutland

    Hans Christian Andersen

  • Like the ephemeron fly, they are born suddenly, and may be expected to die as soon.

    Thoughts on Man

    William Godwin

  • The airy nothing of a sigh bears often a pastoral world or an orcus on its ephemeron's-wing.

    Titan: A Romance v. 1 (of 2)

    Jean Paul Friedrich Richter

  • Its three hundred and sixty-five years were now as but the day of the ephemeron.

    The Sand-Hills of Jutland

    Hans Christian Andersen

  • Let not the ephemeron that lights on a baby's hand generalize too rashly upon the non-growing of organisms!

British Dictionary definitions for ephemeron


noun plural -era (-ərə) or -erons
  1. (usually plural) something transitory or short-lived
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Word Origin

C16: see ephemeral
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ephemeron


1620s, from Greek (zoon) ephemeron, neuter of ephemeros (see ephemera). Figurative use by 1771.

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Online Etymology Dictionary, © 2010 Douglas Harper