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ephemeron

American  
[ih-fem-uh-ron, -er-uhn] / ɪˈfɛm əˌrɒn, -ər ən /

noun

ephemera, plural ephemerons plural
  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.


ephemeron British  
/ ɪˈfɛməˌrɒn /

noun

  1. (usually plural) something transitory or short-lived

"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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of ephemeron

1570–80; < Greek ephḗmeron short-lived insect, noun use of neuter of ephḗmeros; see ephemeral

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Moore has developed a subspecialty in this sort of high-camp Gulf ephemeron: for New Orleans he designed the Piazza d'Italia and the snazziest part of the 1984 World's Fair.

From Time Magazine Archive

It would be useless to enter into the detail of the plot of an ephemeron, that depends more upon its quips and cranks than dramatic construction for its success.

From Punch, or the London Charivari, Volume 1, July 17, 1841 by Various

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

From Thoughts on Man, His Nature, Productions and Discoveries Interspersed with Some Particulars Respecting the Author by Godwin, William

Science sees man as the ephemeron of an hour, an iridescent bubble on a seething, whirling torrent, an accident in a world of incalculable and clashing forces.

From Whitman A Study by Burroughs, John

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

From The Sand-Hills of Jutland by Bushby, Mrs. (Anna S.)

At mid-century, the word “design” implied fashionable ephemera, whereas Noguchi’s own work—furniture as well as sculptures—pursued something more enduring: the aesthetic orchestration of forms, pressures, space and human communication.

From The Wall Street Journal Jul. 1, 2026

The facility will include state-of-the-art, climate-controlled storage for the museum’s more than 250,000-object collection of paintings, sculptures, photographs, tapestries and Cold War-era ephemera from the Soviet Union, East Bloc, China and other countries.

From Los Angeles Times May 10, 2026

If anything proves the market value of seemingly worthless ephemera, Walker added, it’s fans clawing for printed set lists at the end of a concert.

From Los Angeles Times Mar. 2, 2026

How well can you recall the past 250 years of books, music, movies and other cultural ephemera that makes up our country?

From The Wall Street Journal Jan. 28, 2026

Then he dwindled and his lines blurred into ephemera and he slid out through the door, which was open perhaps an inch.

From The Giants From Outer Space by Reynard, Geoff St.

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