chemoreceptor vs nose

chemoreceptor and nose both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemoreceptor	Yes	No	No	No
nose	Yes	No	Yes	No

As nouns, nose is a hyponym of chemoreceptor; that is, nose is a word with a more specific, narrower meaning than chemoreceptor:

chemoreceptor: a sensory receptor that responds to chemical stimuli
nose: the organ of smell and entrance to the respiratory tract; the prominent part of the face of man or other mammals

Other hyponyms of chemoreceptor include gustatory organ, taste bud, tastebud, carotid body, olfactory organ.

chemoreceptor (noun)	nose (noun)
a sensory receptor that responds to chemical stimuli	a front that resembles a human nose (especially the front of an aircraft)
	a projecting spout from which a fluid is discharged
	the front or forward projection of a tool or weapon
	the organ of smell and entrance to the respiratory tract; the prominent part of the face of man or other mammals
	the sense of smell (especially in animals)
	a natural skill
	a symbol of inquisitiveness
	a small distance

chemoreceptor (verb)	nose (verb)
	defeat by a narrow margin
	rub noses
	push or move with the nose
	advance the forward part of with caution
	search or inquire in a meddlesome way
	catch the scent of; get wind of