||Gua*cha"ro (?), n. [Cf. Sp. guácharo sickly, dropsical, guacharaca a sort of bird.] (Zoöl.) A nocturnal bird of South America and Trinidad (Steatornis Caripensis, or S. steatornis); -- called also oilbird.

&fist; 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.