from The Century Dictionary and Cyclopedia
- n. In phonetics, a phonographic curve of a vowel, spoken isolatedly; a curve which shows the course of pitch changes during a vocal utterance.
Sorry, no etymologies found.
If the motion is never to be reversed, the perfect law of the velocity ratio due to the elliptical pitch-curve may be preserved by reducing the thickness of the tooth, not equally on each side, as is done in circular wheels, but wholly on the side not in action.
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