excitotoxin

any of a group of neurologically active compounds, such as glutamate and aspartame, that have detrimental excitatory effects on the central nervous system when taken in high concentrations.

グルタミン酸やアスパルテームなど、高濃度で摂取されると中枢神経系に有害な興奮作用を及ぼす神経活性化合物群の総称