(1):

(n.) The cowfish.

(2):

(n.) A West Indian plectognath fish (Ostracion triqueter).

(3):

(v. t.) To make a cuckold of, as a husband, by seducing his wife, or by her becoming an adulteress.

(4):

(n.) A man whose wife is unfaithful; the husband of an adulteress.