(1) The ability to move actively and on instinct, usually consuming energy in the process.

(2) The ability of an animal to move food through its digestive tract; peristaltic movement.


Motility is one of the general characteristics of most animals in contrast to many plants that are generally lacking motility or limited mobility.

Word origin: Latin mōtus, motion.

Related forms: motile (adjective)

Compare: sessility

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