'Cockchafer' definitions:

Definition of 'cockchafer'

From: WordNet
noun
Any of various large European beetles destructive to vegetation as both larvae and adult [syn: cockchafer, May bug, May beetle, Melolontha melolontha]

Definition of 'Cockchafer'

From: GCIDE
  • Cockchafer \Cock"chaf`er\, n. [See Chafer the beetle.] (Zool.) A beetle of the genus Melolontha (esp. {Melolontha vulgaris}) and allied genera; -- called also May bug, chafer, or dorbeetle. [1913 Webster] Cockcrow