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单词 quaternary ammonium compound
释义

quaternary ammonium compound

noun

: 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

Example Sentences

Recent Examples on the Web The Environmental Working Group’s senior research and database analyst Samara Geller told Apartment Therapy that dryer sheets contain a potentially harmful chemical called quaternary ammonium compounds (QACS). Megan Schaltegger, House Beautiful, 30 Apr. 2019

Word History

First Known Use

circa 1934, in the meaning defined above

Medical Definition

quaternary ammonium compound

noun

: 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

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更新时间:2024/12/23 18:07:24