MSG vs monosodium glutamate

MSG and monosodium glutamate both are nouns.

Word	Noun	Adjective	Verb	Adverb
MSG	Yes	No	No	No
monosodium glutamate	Yes	No	No	No

As nouns, MSG and monosodium glutamate are synonyms defined as:

MSG and monosodium glutamate: white crystalline compound used as a food additive to enhance flavor; often used in Chinese cooking

MSG (noun)	monosodium glutamate (noun)
white crystalline compound used as a food additive to enhance flavor; often used in Chinese cooking	white crystalline compound used as a food additive to enhance flavor; often used in Chinese cooking