4. Changing in appearance and expression under the influence of the mind; as, mobile features.

5. (Physiol.)

Defn: Capable of being moved, aroused, or excited; capable of spontaneous movement.

MOBILE
Mo"bile, n. Etym: [L. mobile vulgus. See Mobile, a., and cf. 3d Mob.]

Defn: The mob; the populace. [Obs.] "The unthinking mobile." South.

MOBILITY
Mo*bil"i*ty, n. Etym: [L. mobilitas: cf. F. mobilité.]

1. The quality or state of being mobile; as, the mobility of a liquid, of an army, of the populace, of features, of a muscle. Sir T. Browne.

2. The mob; the lower classes. [Humorous] Dryden.

MOBILIZATION
Mob`i*li*za"tion, n. Etym: [F. mobilization.]

Defn: The act of mobilizing.