squirm vs motility

squirm and motility both are nouns.

Word	Noun	Adjective	Verb	Adverb
squirm	Yes	No	Yes	No
motility	Yes	No	No	No

As nouns, motility is a hypernym of squirm; that is, motility is a word with a broader meaning than squirm:

Other hypernyms of squirm include motion, move, movement.

squirm (noun)	motility (noun)
the act of wiggling	a change of position that does not entail a change of location
	ability to move spontaneously and independently

squirm (verb)	motility (verb)
to move in a twisting or contorted motion, (especially when struggling)