the dizziness, headache, etc. experienced by some people as a reaction to monosodium glutamate, often used to intensify the flavor of Chinese food
See Chinese restaurant syndrome in American Heritage Dictionary 4
noun
A group of symptoms, including dizziness, facial pressure, sweating, and headache, that may occur after the ingestion of food containing large amounts of monosodium glutamate.
Origin:
Origin: From the frequent use of monosodium glutamate in Chinese restaurants