gamma aminobutyric acid vs GABA

gamma aminobutyric acid and GABA both are nouns.

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

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

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

gamma aminobutyric acid (noun)	GABA (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