MOVING PICTURE n.
A series of pictures, usually photographs taken with a special machine, presented to the eye in very rapid succession, with some or all of the objects in the picture represented in slightly changed positions, producing, by persistence of vision, the optical effect of a continuous picture in which the objects move in so…
MUREXAN n.
A complex nitrogenous substance obtained from murexide, alloxantin, and other ureids, as a white, or yellowish, crystalline which turns red on exposure to the air; -- called also uramil, dialuramide, and formerly purpuric acid.