See Also: ephemerid(1)(dictionary)
ephemerid(2)(dictionary)

ephemerid(2) (iou)



ephemerid noun. L19.
[mod. Latin Ephemeridae (see below), from Ephemera genus name: see EPHEMERA noun1 & adjective, -ID3.]
An insect of the order Ephemeroptera (cf. EPHEMERA noun1 2), esp. one of the family Ephemeridae.