motile vs perceiver

motile and perceiver both are nouns.

Word	Noun	Adjective	Verb	Adverb
motile	Yes	Yes	No	No
perceiver	Yes	No	No	No

As nouns, perceiver is a hypernym of motile; that is, perceiver is a word with a broader meaning than motile:

motile: one whose prevailing mental imagery takes the form of inner feelings of action
perceiver: a person who becomes aware (of things or events) through the senses

Other hypernyms of motile include beholder, observer, percipient.

motile (noun)	perceiver (noun)
one whose prevailing mental imagery takes the form of inner feelings of action	a person who becomes aware (of things or events) through the senses

motile (adjective)	perceiver (adjective)
(of spores or microorganisms) capable of movement