verb (used without object), cach·in·nat·ed, cach·in·nat·ing.
Origin of cachinnate
Related formscach·in·na·tion, nouncach·in·na·tor, nouncach·in·na·to·ry [kak-uh-nuh-tawr-ee, -tohr-ee, kuh-kin-uh-] /ˈkæk ə nəˌtɔr i, -ˌtoʊr i, kəˈkɪn ə-/, adjective
Examples from the Web for cachinnation
Then right under me commenced a vehement rasping and scratching in the floor, accompanied by continuous groans and cachinnation.The Devil's Elixir|E. T. A. Hoffmann
And there it swung to and fro, moved by the violence of its cachinnation.Vikram and the Vampire|Richard F. Burton
Then, look at the baby, when it has turned into a little boy or girl, and come up in some degree to the cachinnation.
Why, one might as well talk of a laughing death's-head,—the cachinnation of a monk's memento mori.The Works of Whittier, Volume VII (of VII)|John Greenleaf Whittier
The former was accompanied by a running fire of cachinnation from the delighted audience.Ellen Terry and Her Sisters|T. Edgar Pemberton