Definitions
from The Century Dictionary.
- The Ephemeridæ considered as of ordinal rank.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun mayflies
Etymologies
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Examples
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Ephemeroptera: briefly winged: = ephemerida; q.v. Epiblast: the outer germ layer of the embryo.
Explanation of Terms Used in Entomology John. B. Smith
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