Webster's Revised Unabridged Dictionary (1913 + 1828)


Displaying 1 result(s) from the 1913 edition:
Polyacoustic (Page: 109)

Pol`y*a*cous"tic (?), a. [Poly- + acoustic: cf. F. polyacoustique.] Multiplying or magnifying sound. -- n. A polyacoustic instrument.