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Related to ephemerid: dayfly


A mayfly, especially one of the family Ephemeridae.

[From New Latin Ephēmeridae, former order name, from Greek ephēmeron, mayfly; see ephemeron.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Animals) any insect of the order Ephemeroptera (or Ephemerida), which comprises the mayflies. Also called: ephemeropteran
[C19: from New Latin Ephēmerida, from Greek ephēmeros short-lived + -id2]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



n., pl. -flies.
any of numerous insects of the family Ephemeridae, with large transparent forewings and threadlike tails, living for a relatively long period as an aquatic nymph and only for two days or less as an adult.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ephemerid - short-lived insectephemerid - short-lived insect      
insect - small air-breathing arthropod
Plectophera - in some former classifications: name for the Ephemeroptera
dayfly, mayfly, shadfly - slender insect with delicate membranous wings having an aquatic larval stage and terrestrial adult stage usually lasting less than two days
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Both concerts will be conducted by the British principal conductor of the SF, James Judd.The piece about the life of a mayfly"Palingenia (a mayfly, or ephemerid) is the musical story of an unpretentious insect which lives for a mere 24 hours on the banks of the Danube river," an SF spokesperson describes.
If the question is viewed from all perspectives, then the answer would be: because there is something important or even something serious in them that exceeds the journalistic ephemerid, maintaining validity and significance in a horizon of time (and space).
This is an eleven-line gem, called "The Treasure." You'll see why I quote it: Mountains, a moment's earth-waves rising and hollowing; the earth too's an ephemerid; the stars-- Short-lived as grass the stars quicken in the nebula and dry in their summer, they spiral Blind up space, scattered black seeds of a future; nothing lives long, the whole sky's Recurrences tick the seconds of the hours of the ages of the gulf before birth, and the gulf After death is like dated: to labor eighty years in a notch of eternity is nothing too tiresome.