Scriptura › Dictionary › Phthongometer 1 entry 1 source Phthongometer Open directly Webster's 1828 Dictionary · 1828 Part of speech: noun (n.) An instrument for measuring vocal sounds. Whewell.
1 entry 1 source Phthongometer Open directly Webster's 1828 Dictionary · 1828 Part of speech: noun (n.) An instrument for measuring vocal sounds. Whewell.