a. [f. Gr. τρίγαμ-ος thrice married (f. τρι- + γάμος wedding) + -OUS.]
1. Characterized by, involving, or living in trigamy.
1843. Baton Rouge Gaz., 12 Aug., 3/2. Has not the statesman of Carolina invaded Mr. Van Burens household with bigamous, if not trigamous intent?
1886. Pall Mall G., 25 Jan., 4. The Man with Three Wives never lives in the trigamous state.
1900. P. F. Willert, in Eng. Hist. Rev., July, 590. Bigamous and trigamous marriages.
1908. Daily Chron., 22 Jan., 5/5. All three combine to avenge the treachery of the trigamous husband.
2. Bot. Having male, female, and hermaphrodite flowers in the same head. (Cf. POLYGAMOUS 3.)
1842. Brande, Dict. Sc., etc., Trigamous, containing three sorts of flowers in the same flower-head; that is to say, males, females, and hermaphrodites.
1900. in B. D. Jackson, Gloss. Bot. Terms.