Stroboscope
Pronunciation : Strob"o*scope
Part of Speech : n.
Etymology : [Gr. -scope.]
Definition : 1. An instrument for studying or observing the successive phases of a periodic or varying motion by means of light which is periodically interrupted.
2. An optical toy similar to the phenakistoscope. See Phenakistoscope.
Source : Webster's Unabridged Dictionary, 1913