A chemical element, one of the ‘metals of the alkaline earths’, being the basis of lime; though one of the most widely diffused of elements, it is…
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| 释义 | the world > matter > chemistry > elements and compounds > metals > specific elements > calcium > [noun] (4) calcium1808 A chemical element, one of the ‘metals of the alkaline earths’, being the basis of lime; though one of the most widely diffused of elements, it is… Ca1830 calcium. Subcategories:— compounds (2) |
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