ephemeron

2 definitions found

ephemeron - 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]

ephemeron - WordNet (r) 2.1 (2005) :

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