microcoustic

CIDE DICTIONARY

microcoustic, a. [Micro- + acoustic: cf. F. microcoustique, micracoustique.].

Pertaining, or suited, to the audition of small sounds; fitted to assist hearing. [1913 Webster]

microcoustic, n.

An instrument for making faint sounds audible, as to a partially deaf person. [1913 Webster]

For further exploring for "microcoustic" in Webster Dictionary Online

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phrase	search for verses that contains all of the search phrase.	"fish bread" will search for verses that contains "fish bread" in minimum 1 bible version
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TIP #04: Try using range (OT and NT) to better focus your searches. [ALL]