a. Nat. Hist. [f. TRI- + mod.L. lobātus: see LOBATE.] Having or consisting of three lobes, three-lobed.
1785. Martyn, Rousseau’s Bot., xviii. 260. A trilobate capsule, of three valves and three cells.
1803. Shaw, Gen. Zool., IV. 487. Trilobate Labrus [a fish] size of a Carp … native of the African seas.
1806. J. Galpine, Brit. Bot., 61. Alchemilla … L[eaves] flat, trilobate, incised.
1877. Coues, Fur Anim., ix. 274. The exterior pair [of incisors] are … obscurely trilobate.
So Trilobated a. = trilobate; Trilobation, trilobate condition; Trilobe v., trans. to divide into three lobes; Trilobed a. = trilobate.
1775. Ash, *Trilobated, having three lobes.
1890. Amer. Jrnl. Archæol., VI. 594. Pointed windows … trilobated or with elaborate tracery.
1872. Nicholson, Palæont., 161. In some cases … this *trilobation is only obscurely marked.
1826. Kirby & Sp., Entomol., xxx. III. 114. [The head] is *trilobed, each lateral lobe being divided into three smaller ones.
1872. Nicholson, Palæont., 160. Order Trilobita—Crustaceans in which the body is usually more or less distinctly trilobed.
