a. Nat. Hist. [f. TRI- + L. locul-us small receptacle, dim. of locus place + -AR1.] Having three cells or compartments, as the capsule of a plant, or the heart of a reptile. Also Triloculate a. (Cent. Dict., 1891).
1753. Chambers, Cycl. Supp., Capsule,… sometimes contains only one cell or cavity, sometimes more;… called unilocular;… bilocular, trilocular.
1785. Martyn, Rousseau’s Bot., xvi. (1794), 185. Ipomæa has … a trilocular capsule.
1845. Lindley, Sch. Bot., i. (1858), 16. [The pistil] is either bilocular, trilocular, multilocular, or otherwise.
1861. Hulme, trans, Moquin-Tandon, II. II. 54. Amphibia…. Their heart, trilocular or bilocular.
