echometer

echometer is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.A graduated scale for measuring the duration of sounds, and determining their different, and the relation of their intervals. J. J. Rousseau.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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