Medical Dictionary

quaternary ammonium compound

noun

Medical Definition of QUATERNARY AMMONIUM COMPOUND

:  any of numerous strong bases and their salts derived from ammonium by replacement of the hydrogen atoms with organic radicals and important especially as surface-active agents, disinfectants, and drugs—called also quat, quaternary
July 01, 2015
precarious Hear it
not certain, secure, or steady
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