proline vs aminoalkanoic acid

proline and aminoalkanoic acid both are nouns.

Word	Noun	Adjective	Verb	Adverb
proline	Yes	No	No	No
aminoalkanoic acid	Yes	No	No	No

As nouns, aminoalkanoic acid is a hypernym of proline; that is, aminoalkanoic acid is a word with a broader meaning than proline:

proline: an amino acid that is found in many proteins (especially collagen)
aminoalkanoic acid: organic compounds containing an amino group and a carboxylic acid group

Other hypernyms of proline include amino acid.

proline (noun)	aminoalkanoic acid (noun)
an amino acid that is found in many proteins (especially collagen)	organic compounds containing an amino group and a carboxylic acid group