mayfly

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noun may·fly \ˈmā-ˌflī\

Definition of mayfly

  1. :  any of an order (Ephemeroptera) of insects with an aquatic nymph and a short-lived, fragile adult lacking mouthparts and having membranous, heavily veined wings and two or three long, threadlike tails the wings of the mayfly are held vertically above the body when closed. —called also ephemerid

Recent Examples of mayfly from the Web

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Illustration of mayfly

First Known Use of mayfly

circa 1653


MAYFLY Defined for English Language Learners

mayfly

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noun

Definition of mayfly for English Language Learners

  • : a small flying insect that lives for only a short time



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