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ephemera

[ ih-fem-er-uh ]
/ 瑟藞f蓻m 蓹r 蓹 /
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noun, plural e路phem路er路as, e路phem路er路ae [ih-fem-uh-ree] /瑟藞f蓻m 蓹藢ri/ for 2.
a plural of ephemeron.
an ephemerid.
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Origin of ephemera

1670鈥80; <Greek eph岣梞era, neuter plural of eph岣梞eros, taken as singular; see ephemeral
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, 漏 Random House, Inc. 2023

How to use ephemera in a sentence

British Dictionary definitions for ephemera

ephemera
/ (瑟藞f蓻m蓹r蓹) /

noun plural -eras or -erae (-蓹藢ri藧)
a mayfly, esp one of the genus Ephemera
something transitory or short-lived
(functioning as plural) a class of collectable items not originally intended to last for more than a short time, such as tickets, posters, postcards, or labels
a plural of ephemeron

Word Origin for ephemera

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