n.
adj.
n. [ Gr. &unr_; action + -scope. ] (Opt.) An instrument, similar to the phenakistoscope, for presenting to view, or projecting upon a screen, images the natural motions of real objects. [ 1913 Webster ]
n. [ NL., fr. Gr. &unr_;, fr. &unr_; to do. See Practice. ]
n. [ Zoo- + Gr. &unr_; a doing, an acting (from &unr_; to do) + -scope. ] An instrument similar to, or the same as, the, the phenakistoscope, by means of which pictures projected upon a screen are made to exhibit the natural movements of animals, and the like. [ 1913 Webster ]