apatite
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.ap·a·tite
noun \ˈa-pə-ˌtīt\Definition of APATITE
: any of a group of calcium phosphate minerals occurring in various colors as hexagonal crystals, as granular masses, or in fine-grained masses as the chief constituent of phosphate rock and of bones and teeth; especially : calcium phosphate fluoride
See Origin of APATITE
German Apatit, from Greek apatē deceit
First Known Use: 1803
ap·a·tite
noun \ˈap-ə-ˌtīt\ (Medical Dictionary)Medical Definition of APATITE
: any of a group of calcium phosphate minerals occurring variously as hexagonal crystals, as granular masses, or in fine-grained masses as the chief constituent of bones and teeth and of phosphate rock; especially : calcium phosphate fluoride Ca5F(PO4)3
apatite
noun (Concise Encyclopedia)A member of the phosphate group of minerals, the world's major source of phosphorus, found as variously coloured, glassy crystals, masses, or nodules. Much of it has a chemical composition approximating Ca(PO)(F,Cl,OH). If not for its softness, apatite would be a popular gemstone; some of the material found is clear, but it is fragile and difficult to cut and polish.
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