monosodium glutamate

Monosodium glutamate, sodium glutamate, flavour enhancer 621, EU food additive code: E621, HS code: 29224220 (IUPAC name 2-aminopentanedioic acid. Also known as 2-aminoglutaric acid), commonly known as MSG, Ajinomoto, Vetsin, or Accent, is a sodium salt of glutamic acid. MSG is a food additive, popularly marketed as a "flavour enhancer".
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Monosodium glutamate /mono·so·di·um glu·ta·mate/ the monosodium salt of -glutamic acid, used as a pharmaceutic necessity and to enhance the flavor [more]Monosodium glutamate - Community and Resources

Noun
1. white crystalline compound used as a food additive to enhance flavor; often used in Chinese cooking
(synonym) MSG
(hypernym) flavorer, flavourer, flavoring, flavouring, seasoner, seasoning

MSG is monosodium glutamate , used as a flavor enhancer in many foods.

n. สารชูรส (คำย่อคือ MSG), ผงชูรส