noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any neurotransmitter involved in excitotoxicity.
2. 2
   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. wordnet

Etymology

From excito- + toxin.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.