'Water cock' definitions:

Definition of 'Water cock'

From: GCIDE

Water cock \Wa"ter cock`\ (Zool.) A large gallinule (Gallicrex cristatus) native of Australia, India, and the East Indies. In the breeding season the male is black and has a fleshy red caruncle, or horn, on the top of its head. Called also kora. [1913 Webster]