Reverberatory

Part of speech: adjective

Pronunciation: /ɹɪˈvɜːb(ə)ɹət(ə)ɹi/

Definitions

1. Having the ability to produce echoes or repeated sound waves
2. Relating to a mechanism that enhances or reflects thermal or acoustic energy
3. Capable of reflecting sound waves multiple times to create echoes ; referring to a furnace design that heats by bouncing flame and heat back onto materials

Etymology: "Reverberatory" comes from New Latin "reverberatorius," a scientific coinage built on the verb "reverberate," which itself descends from Latin "reverberare," meaning "to beat back" or "to strike again." The Latin verb combines "re-" (back) with "verberare" (to beat, lash), so the underlying image is of something struck and driven back. English "reverberate" carried that sense of echoing back a blow, and it was applied to sound and then to heat and light. The adjective is the form that names a specific piece of equipment: a furnace in which the flame and heat are deflected off the roof or walls of the chamber and directed onto the material inside, rather than touching it directly. The suffix "-ory" marks it as an adjective of relation, so the word means something like "pertaining to beating back." Metallurgists and glassmakers used such furnaces for smelting and refining, and the word stayed attached to that technical setting.