(1):

(n.) Fig.: A medley of figures; illusive images.

(2):

(n.) The apparatus by which such an effect is produced.

(3):

(n.) An optical effect produced by a magic lantern. The figures are painted in transparent colors, and all the rest of the glass is opaque black. The screen is between the spectators and the instrument, and the figures are often made to appear as in motion, or to merge into one another.