GABA vs gamma aminobutyric acid

GABA and gamma aminobutyric acid both are nouns.

Word	Noun	Adjective	Verb	Adverb
GABA	Yes	No	No	No
gamma aminobutyric acid	Yes	No	No	No

As nouns, GABA and gamma aminobutyric acid are synonyms defined as:

GABA and gamma aminobutyric acid: an amino acid that is found in the central nervous system; acts as an inhibitory neurotransmitter

GABA (noun)	gamma aminobutyric acid (noun)
an amino acid that is found in the central nervous system; acts as an inhibitory neurotransmitter	an amino acid that is found in the central nervous system; acts as an inhibitory neurotransmitter