noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A quaternary ammonium cation, N-benzyl-N,N-dimethyl-2-{2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy}ethanaminium, whose chloride is an industrial disinfectant. uncountable

Etymology

From benz(yl) + eth(yl) + -onium (“quaternary ammonium compound”).

Related phrases

benzethonium chloridequaternary ammonium

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