a. [f. TRI- 1 + L. articulus joint + -ATE2.] Three-jointed.
1826. Kirby & Sp., Entomol., III. 518. Flies … with triarticulate antennæ.
1875. C. C. Blake, Zool., 296. The Colopoda…— The feet are very short,… indistinctly triarticulate.
