Reverberation

Re‐ver′ber‐a″tion (?), n. [CF. F. réverbération.] The act of reverberating; especially, the act of reflecting light or heat, or reëchoing sound; as, the reverberation of rays from a mirror; the reverberation of rays from a mirror; the reverberation of voices; the reverberation of heat or flame in a furnace.