hexose vs monosaccharide

hexose and monosaccharide both are nouns.

Word	Noun	Adjective	Verb	Adverb
hexose	Yes	No	No	No
monosaccharide	Yes	No	No	No

As nouns, monosaccharide is a hypernym of hexose; that is, monosaccharide is a word with a broader meaning than hexose:

hexose: a monosaccharide that contains six carbon atoms per molecule
monosaccharide: a sugar (like sucrose or fructose) that does not hydrolyse to give other sugars; the simplest group of carbohydrates

Other hypernyms of hexose include monosaccharose, simple sugar.

hexose (noun)	monosaccharide (noun)
a monosaccharide that contains six carbon atoms per molecule	a sugar (like sucrose or fructose) that does not hydrolyse to give other sugars; the simplest group of carbohydrates