Apatite

ahd-5
  • noun. Any of a group of natural, variously colored calcium phosphate minerals containing fluorine, chlorine, or hydroxyl. These compounds form hexagonal crystals and are components of bones and teeth, are a source of phosphorus for plants, and are used in the manufacture of fertilizers.
  • noun. undefined
    • The Century Dictionary and Cyclopedia
  • noun. Native calcium phosphate with calcium fluorid or chlorid, generally crystallized in hexagonal prisms, which are sometimes low or even tabular, sometimes elongated, and occasionally of great size.
    • the GNU version of the Collaborative International Dictionary of English
  • noun. Native phosphate of lime, occurring usually in six-sided prisms, color often pale green, transparent or translucent.
    • Wiktionary, Creative Commons Attribution/Share-Alike License
  • noun. A calcium fluoride phosphate of variable composition, sometimes used in the manufacture of fertilizer.
    • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • noun. a common complex mineral consisting of calcium fluoride phosphate or calcium chloride phosphate; a source of phosphorus
    • Word Usage
    "And one of the properties of [hydroxy] apatite is that you can have supersaturated solutions of calcium and phosphate that can be maintained quite stably."
    cross-reference
    appetite  
    Hypernym
    Words that are more generic or abstract
    mineral  
    Hyponym
    Words that are more specific
    fluorapatite  
    Rhyme
    Words with the same terminal sound
    appetite  
    Same Context
    Words that are found in similar contexts
    1-in  Waterford  acicular  aperiodic  aragonite  
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