'budgerigar' definitions:

Definition of 'budgerigar'

From: WordNet
noun
Small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors [syn: budgerigar, budgereegah, budgerygah, budgie, grass parakeet, lovebird, shell parakeet, Melopsittacus undulatus]

Definition of 'budgerigar'

From: GCIDE
  • budgerigar \budg"er*i*gar\, budgereegah \budgereegah\, budgerygah \budgerygah\n. small Australian parakeet (Melopsittacus undulatus) usually light green with black and yellow markings in the wild but bred in many colors.
  • Syn: budgie, grass parakeet, lovebird, shell parakeet. [WordNet 1.5]