| 单词 | quaternary ammonium compound |
| 释义 | Quaternary Ammonium Compound nnoun.substancea compound derived from ammonium with hydrogen atoms replaced by organic groups; used as surface-active agents, disinfectants, and in drugs Hypernyms:organic compound Inherited Hypernyms:quaternary ammonium compoundorganic compoundcompoundchemicalmaterialsubstancematterphysical entityentity Inherited Hypernyms:quaternary ammonium compoundorganic compoundcompoundchemicalmaterialsubstancepartrelationabstractionentity |
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