| carbide | A compound of carbon with an element more electropositive than itself; e.g., CaC2, calcium carbide. (05 Mar 2000) |
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| calcium carbide | CaC2;blackish crystalline lumps which when in contact with water yield acetylene gas. (05 Mar 2000) |
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| tungsten carbide | <chemical> One of the hardest known materials, used as an abrasive and in the manufacture of dental cutting instruments. (05 Mar 2000) |