MOTOGRAPH
Mo"to*graph, n. [L. movere, motum, to move + -graph.] (Elec.)
Defn: A device utilized in the making of a loud-speaking telephone, depending on the fact that the friction between a metallic point and a moving cylinder of moistened chalk, or a moving slip of paper, on which it rests is diminished by the passage of a current between the point and the moving surface. — Mo`to*graph"ic (#), a.
MOTON
Mo"ton, n. Etym: [Etymol. uncertain.] (Anc. Armor)
Defn: A small plate covering the armpit in armor of the 14th century and later.
MOTOR
Mo"tor, n. Etym: [L., fr. movere, motum, to move.]
1. One who, or that which, imparts motion; a source of mechanical power.
2. (Mach.)
Defn: A prime mover; a machine by means of which a source of power, as steam, moving water, electricity, etc., is made available for doing mechanical work.
MOTOR; MOTORY; MOTORIAL
Mo"tor, Mo"to*ry, Mo*to"ri*al, a. Etym: [L. motorius that has motion.
See Motor, n.]
Defn: Causing or setting up motion; pertaining to organs of motion; - - applied especially in physiology to those nerves or nerve fibers which only convey impressions from a nerve center to muscles, thereby causing motion.