单词 | phthongometer |
释义 | phthonˈgometer rare. [f. as prec. + -meter.] A measurer of the intensity of vowel sounds.
1837Whewell Hist. Induct. Sc. (1857) II. 266 We may..consider this instrument as a phthongometer, or measure of vowel quality. 1848in Smart Supp., and in later Dicts. |

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