excitotoxicity en · NOUN
Etymology
Etymology tree English excito- Undeterminedder.? Ancient Greek τόξον (tóxon) Proto-Indo-European *-kos Proto-Hellenic *-kos Ancient Greek -κός (-kós) Ancient Greek -ῐκός (-ĭkós) Ancient Greek τοξῐκός (toxĭkós) Ancient Greek τοξικόν (toxikón)der. Latin toxicum Proto-Indo-European *-kos Proto-Italic *-kos Latin -cus Latin toxicusbor. French toxiquebor. English toxic Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English toxicity English excitotoxicity From excito- + toxicity.
Meanings
- (uncountable) The continuous stimulation of a nerve cell by a neurotransmitter, especially by glutamates