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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 |
| any saline or salty solution |
benzanthracene benz·an·thra·cene (běn-zān'thrə-sēn') or benz·an·threne (-thrēn')
n.
A crystalline, weakly carcinogenic cyclic hydrocarbon.