a. [f. prec.: see -ORY.] Of, pertaining to, or connected with loud or immoderate laughter.
1828. Blackw. Mag., XXIV. 188. Shall our cachinnatory muscles remain rigid?
1846. Hawthorne, Mosses, II. iii. (1864), 61. Which threatened instant death on the slightest cachinnatory indulgence.
