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ephemerid

American  
[ih-fem-er-id] / ɪˈfɛm ər ɪd /

noun

  1. an insect of the order Ephemeroptera, comprising the mayflies.

ephemerid British  
/ ɪˈfɛmərɪd /

noun

  1. Also called: ephemeropteran.  any insect of the order Ephemeroptera (or Ephemerida ), which comprises the mayflies

"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

Etymology

Origin of ephemerid

From the New Latin word Ephemeridae, dating back to 1870–75. See ephemeral, -id 2

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.

Those who play a waiting game have matters more in their own hands, time gives them double chances; whereas if success does not come at once to the ephemerid he misses it altogether.

From The Note-Books of Samuel Butler by Butler, Samuel

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.