cachinnatory

adj

cachinnatory

adj

UK /ˈkakɪnəˌtəɹi/

Etymology From cachinnate + -ory.

1

Pertaining to loud or immoderate laughter.

But these jests, and others of a similar nature, had evidently produced, at no time, any effect upon the cachinnatory muscles of the tar.1835, Edgar Allan Poe, King Pest:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.