echometry

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• Echometry — E*chom e*try, n. [Cf. F. [ e]chom[ e]trie.] 1. The art of measuring the duration of sounds or echoes. [1913 Webster] 2. The art of constructing vaults to produce echoes …   The Collaborative International Dictionary of English

• echometry — † eˈchometry ? Obs. [mod. f. Gr. ἠχώ echo, or ἦχος sound + µετρία measuring. Littré has Fr. échométrie ‘art de calculer, de combiner la réflexion des sons’, = sense 1 below.] 1. ‘The art of making vaults or arches so as to produce an artificial… …   Useful english dictionary