ephemerid

[ ih-fem-er-id ]

/ ɪˈfɛm ər ɪd /

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noun

an insect of the order Ephemeroptera, comprising the mayflies.

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Also called ephemeropteran.

Origin of ephemerid

From the New Latin word Ephemeridae, dating back to 1870–75. See ephemeral, -id²

Words nearby ephemerid

ephedra, ephedrine, ephemera, ephemeral, ephemerality, ephemerid, ephemeris, ephemeris second, ephemeris time, ephemeron, ephemeropteran

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use ephemerid in a sentence

They are like the Ephemerid insects which live for a summer day only.
The Romance of Plant Life|G. F. Scott Elliot
In the Ephemerid they lie in planes approaching the vertical, slightly diverging from each other towards their extremities.
Old Flies in New Dresses|Charles Edward Walker
I do not propose in this work to deal with Ephemerid, as the wings in the imitations now sold are in the natural position.
Old Flies in New Dresses|Charles Edward Walker
Those examples are provided by Rotifera (inferior worms) and by Ephemerid.
Life of Elie Metchnikoff, 1845-1916|Olga Metchnikoff

Ephemeral′ity; Ephem′erid, an insect belonging to the group Ephemerid.
Chambers's Twentieth Century Dictionary (part 2 of 4: E-M)|Various

British Dictionary definitions for ephemerid

ephemerid

/ (ɪˈfɛmərɪd) /

noun

any insect of the order Ephemeroptera (or Ephemerida), which comprises the mayfliesAlso called: ephemeropteran

Word Origin for ephemerid

C19: from New Latin Ephēmerida, from Greek ephēmeros short-lived + -id ²

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