Definitions

1. verb

to laugh loudly and uproariously; to laugh boisterously

“The comedian’s jokes made the audience cachinnate with laughter.”

2. verb

to laugh loudly or in a loud, boisterous manner

“The crowd began to cachinnate as the fireworks exploded in the sky.”

3. noun

a loud and boisterous laugh

“The cachinnate that filled the room was infectious.”