Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun quaternary_ammonium_compound
1 sense of quaternary ammonium compound
Sense 1
quaternary ammonium compound -- (a compound derived from ammonium with hydrogen atoms replaced by organic groups; used as surface-active agents, disinfectants, and in drugs)
=> organic compound -- (any compound of carbon and another element or a radical)