: a device used in the ancient Greek and Roman theater for making a sound of thunder originally by means of bronze jars or skins filled with stones.

What is a Brontide?

: a low muffled sound like distant thunder heard in certain seismic regions especially along seacoasts and over lakes and thought to be caused by feeble earth tremors.

What is a Morosoph?

Definitions of morosoph. a learned fool. type of: fool, muggins, sap, saphead, tomfool. a person who lacks good judgment.