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| a vessel, commonly a glass bulb with a long neck bent downward, used for distilling or decomposing substances by heat |
| a substance that causes a chemical reaction without itself being affected |
| alkaline earth | |
| —n | |
| 1. | alkaline earth metal, Also called: alkaline earth element any of the divalent electropositive metals beryllium, magnesium, calcium, strontium, barium, and radium, belonging to group 2A of the periodic table |
| 2. | an oxide of one of the alkaline earth metals |