| 释义 |
† 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 echo.’
1818in Todd.
2. The art of measuring the duration of sound.
1847in Craig. |