Webster’s Revised Unabridged Dictionary · 1913
Echometry
E·chom′e·try, n. [Cf. F. échométrie.] 1. The art of measuring the duration of sounds or echoes.
2. The art of constructing vaults to produce echoes.
Webster’s Revised Unabridged Dictionary · 1913
E·chom′e·try, n. [Cf. F. échométrie.] 1. The art of measuring the duration of sounds or echoes.
2. The art of constructing vaults to produce echoes.