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ephemerid

[ih-fem-er-id] /ɪˈfɛm ər ɪd/
noun
1.
an insect of the order Ephemeroptera, comprising the mayflies.
Also called ephemeropteran.
Origin
1870-1875
1870-75; < Neo-Latin Ephemeridae. See ephemeral, -id2
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for ephemerid

ephemerid

/ɪˈfɛmərɪd/
noun
1.
any insect of the order Ephemeroptera (or Ephemerida), which comprises the mayflies Also called ephemeropteran
Word Origin
C19: from New Latin Ephēmerida, from Greek ephēmeros short-lived + -id²
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
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