motilePronunciation: /ˈməʊtʌɪl/Definition of motile adjective 1 Zoology & Botany (of cells, gametes, and single-celled organisms) capable of motion: males produce small motile gametes 2 Psychology relating to or characterized by responses that involve muscular rather than audiovisual sensations. Derivatives motilityPronunciation: /-ˈtɪlɪti/ noun Origin: mid 19th century: from Latin motus 'motion', on the pattern of mobilemotile in other Oxford dictionaries Definition of motile in the US English dictionary