Meaning of quaternary ammonium compound
quat'ernary ammo'nium com"pound
— Chem. Chem.
- any of a class of salts derived from ammonium in which the nitrogen atom is attached to four organic groups, as in benzalkonium chloride; the salts are cationic surface-active compounds used as antiseptics and disinfectants. Also called
- quaternary ammonium compound (Thesaurus)