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| to remove impurities from a gas by chemical means, as sulfur dioxide from smokestack gas or carbon dioxide from exhaled air in life-support packs |
| a preparation containing an insoluble dye converted by reduction into a soluble leuco base, or a vessel containing such a preparation |
alkyl al·kyl (āl'kəl)
n.
A monovalent radical, such as ethyl or propyl, having the general formula CnH2n+1.
| alkyl (āl'kəl) Pronunciation Key
A radical that has the general formula CnH2n+1, formed by removing a hydrogen atom from an alkane. Ethyl and propyl are alkyls. |