| 单词 | benzalkonium chloride | 
| 释义 | ben·zal·ko·ni·um chloride   (bĕn′zăl-kōnē-əm) n.  A yellow-white powder prepared in an aqueous solution and used as a detergent, fungicide, bactericide, and spermicide. [BENZ(O)- + ALK(YL) + (AMM)ONIUM.] | 
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