polyacoustic

== English == === Etymology === From poly- + acoustic. === Adjective === polyacoustic (comparative more polyacoustic, superlative most polyacoustic) Multiplying or magnifying sound. === Noun === polyacoustic (plural polyacoustics) A polyacoustic instrument. === See also === polyacoustics === References === “polyacoustic”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.