GABA vs aminoalkanoic acid

GABA and aminoalkanoic acid both are nouns.

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

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

GABA: an amino acid that is found in the central nervous system; acts as an inhibitory neurotransmitter
aminoalkanoic acid: organic compounds containing an amino group and a carboxylic acid group

Other hypernyms of GABA include amino acid, neurotransmitter.

GABA (noun)	aminoalkanoic acid (noun)
an amino acid that is found in the central nervous system; acts as an inhibitory neurotransmitter	organic compounds containing an amino group and a carboxylic acid group