irregular combining form of L. vibrāre to vibrate, used in some recent technical and scientific terms, as vibrograph, vibrometer, vibromotor, vibrophone, vibroscope (hence vibroscopic adj.), etc.
1875. Encycl. Brit., I. 110/1. Greater accuracy [in studying the relation between pitch and vibration] may be attained with the so-called *Vibrograph or Phonautograph.
1904. Nature, 25 Feb. Suppl. p. iii. Vibrograph, or instrument for recording photographically vibrations of a building or of the ground.
1887. Pall Mall G., 24 May, 4/2. An ingenious instrument termed a *vibrometer … accurately records the vibration, and by its means every boat is tested before it leaves the builder’s hands.
1894. Standard, 8 Feb. By Mr. Beaumont’s method the cause of vibration … is converted into a *vibromotor.
1875. Knight, Dict. Mech., 2709/2. *Vibroscope,… an instrument invented by Duhamel for counting the vibrations of a tuning-fork.
1881. Broadhouse, Mus. Acoustics, 101. Another method of measuring pitch is the vibroscope, which as its name implies, is a method of making vibrations visible.
