dayfly

[ dey-flahy ]
/ ˈdeɪˌflaɪ /

noun, plural day·flies.

a mayfly.

Origin of dayfly

First recorded in 1595–1605; day + fly2

British Dictionary definitions for dayfly

dayfly
/ (ˈdeɪˌflaɪ) /

noun plural -flies

another name for a mayfly