WHISTLE

An Illustrated Encyclopedic Medical Dictionary · 1894 · p. 33

n. Hwi2s'l. Fr., sifflet. Ger.<Pfeife (2d def.). 1. A shrill sound formed by forcing air through a small opening. 2. An instrument producing such a sound, [a, 48.] Gallon's W. An instrument for testing the acuity of hearing with very high tones. [F.] [s. 729]