Search Result for "ephemeron": 
Wordnet 3.0

NOUN (1)

1. anything short-lived, as an insect that lives only for a day in its winged form;
[syn: ephemeron, ephemeral]



The Collaborative International Dictionary of English v.0.48:

Ephemeron \E*phem"e*ron\, n.; pl. Ephemera. [NL. See
   Ephemera.] (Zo["o]l.)
   One of the ephemeral flies.
   [1913 Webster]


WordNet (r) 3.0 (2006):

ephemeron
    n 1: anything short-lived, as an insect that lives only for a
         day in its winged form [syn: ephemeron, ephemeral]