locomotor vs motile

locomotor

adj
  • Of or pertaining to movement or locomotion. 

noun
  • Something that is capable of locomotion. 

motile

adj
  • Of or relating to those mental images that arise from the sensations of bodily movement and position. Cf. kinesthetic, proprioceptive. 

  • In organs: having the power to move their contents, or to change their shape or tension by writhing or contracting as required by their particular physiological functions. 

  • In organs or organelles: capable of producing motion. 

  • In organisms: having the power to move spontaneously. 

noun
  • A person whose prevailing mental imagery takes the form of inner feelings of action, such as incipient pronunciation of words, muscular innervations, etc. 

How often have the words locomotor and motile occurred in a corpus of books? (source: Google Ngram Viewer )