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mayfly

American  
[mey-flahy] / ˈmeɪˌflaɪ /

noun

mayflies plural
  1. Also called shadfly.  any insect of the order Ephemeroptera, having delicate, membranous wings with the front pair much larger than the rear and having an aquatic larval stage and a terrestrial adult stage usually lasting less than two days.

  2. Angling. Also May fly an artificial fly made to resemble this insect.


mayfly British  
/ ˈmeɪˌflaɪ /

noun

  1. Also called: dayfly.  any insect of the order Ephemeroptera (or Ephemerida ). The short-lived adults, found near water, have long tail appendages and large transparent wings; the larvae are aquatic

  2. angling an artificial fly resembling this

"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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of mayfly

First recorded in 1645–55; May + fly 1

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.

Dead ahead: maybe 75 dancers, mostly in their late teens and early 20s, others in their 30s and 40s, sweating it out in this mayfly, once-every-five-weeks discothèque.

From Seattle Times • Jan. 27, 2023

Some would sip the mouse like a tiny mayfly; others would leap completely out of the water, grabbing the fly on the way down.

From Washington Post • Sep. 16, 2021

He believes there is a direct correlation between sewage discharges and lower numbers of brown trout, grayling and invertebrates - animals without a backbone, including worms, snails and insects such as mayfly.

From BBC • Mar. 31, 2021

Crappie are slow due to the mayfly hatch and should return to normal numbers in 2-3 weeks.

From Washington Times • Jul. 8, 2020

Here, I am the strange one, with my blunt fingers, round ears, and mayfly life.

From "The Cruel Prince" by Holly Black

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