'oilbird' definitions:

Definition of 'oilbird'

From: WordNet
noun
Nocturnal fruit-eating bird of South America that has fatty young yielding an oil that is used instead of butter [syn: oilbird, guacharo, Steatornis caripensis]

Definition of 'oilbird'

From: GCIDE
  • Guacharo \Gua*cha"ro\, n. [Cf. Sp. gu['a]charo sickly, dropsical, guacharaca a sort of bird.] (Zool.) A nocturnal bird of South America and Trinidad ({Steatornis Caripensis}, or S. steatornis); -- called also oilbird. [1913 Webster]
  • Note: It resembles the goatsuckers and nighthawks, but feeds on fruits, and nests in caverns. A pure oil, used in place of butter, is extracted from the young by the natives. [1913 Webster]