ephemerid

e·phem·er·id  (-fmr-d)

n.

An insect of the order Ephemeroptera; a mayfly.

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[From New Latin Ephmeridae, former order name, from Greek ephmeron, mayfly; see ephemeron.]

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ephemerid [ɪˈfɛmərɪd]

n

(Life Sciences & Allied Applications / Animals) any insect of the order Ephemeroptera (or Ephemerida), which comprises the mayflies Also called ephemeropteran

[from New Latin Ephēmerida, from Greek ephēmeros short-lived + -id²]

Thesaurus

Noun

1.

ephemerid - short-lived insect                   ephemeropteran insect - small air-breathing arthropod Ephemerida, Ephemeroptera, order Ephemerida, order Ephemeroptera - mayflies 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