[f. ZOO- + GYROSCOPE.] An apparatus in which a series of instantaneous photographs of a moving animal are placed upon a rotating glass cylinder and illuminated so as to throw the images in rapid succession upon a screen, producing the appearance of the actual movement.

1

1880.  Cassell’s Fam. Mag., 640. The zoogyroscope can … be applied to photographs of other animals besides the horse.

2

1880.  Cultivator & Country Gentleman, XLV. 10 June, 382/2. After expending $50,000 in experimenting on the zoögyroscope, by which instantaneous photographs are taken, E. J. Muybridge, backed by Gov. Stanford of California, has brought the process nearly to perfection, and some interesting facts have been demonstrated.

3