
1) Calcium mineral 2) Ceramic material 3) Hexagonal mineral 4) Main salt of bone and teeth
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https://www.crosswordclues.com/clue/hydroxyapatite

one of the apatites which is the main salt of bone and teeth.
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http://www.encyclo.co.uk/local/20169

<chemistry> The calcium phosphate mineral, Ca10(PO4)6(OH)2, found both in rocks of nonorganic origin and as a component of bone and dentine. Used as column packing for chromatography, particularly for separating double stranded DNA from mixtures containing single stranded DNA. ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973

(hi-drok″se-ap´ә-tīt) an inorganic constituent of bone matrix and teeth, imparting rigidity to these structures.
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http://www.encyclo.co.uk/local/21001

The calcium phosphate mineral, Ca10(PO4) 6(OH)2 , found both in rocks of non-organic origin and as a component of bone and dentine. Used as column packing for chromatography, particularly for separating double-stranded DNA from mixtures containing single-stranded DNA.
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http://www.encyclo.co.uk/visitor-contributions.php

Type: Term Pronunciation: hī-drok′sē-ap′ă-tīt Definitions: 1. A natural mineral structure that the crystal lattice of bones and teeth (amorphous hydroxyapatite) closely resembles; used in chromatography of nucleic acids; also found in pathologic calcifications (atherosclerotic aortas). Synonyms: hydroxylapatite &nb.....
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http://www.medilexicon.com/medicaldictionary.php?t=42057

Our Hydroxyapatite Main Article provides a comprehensive look at the who, what, when and how of Hydroxyapatite Hydroxyapatite: A major component and an essential ingredient of normal bone and teeth. Hydroxyapatite makes up bone mineral and the matrix of teeth. It is hydroxyapatite that gives bones and teeth their rigidity. Hydroxyapatite molecules ...
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http://www.medterms.com/script/main/art.asp?articlekey=7368

Hydroxyapatite is a calcium phosphate mineral contained in normal bone. The lattice-like structure of hydroxyapatite crystals accounts for the rigidity of bones. Hydroxyapatite is often used in the manufacture of bone void filler products that provide scaffolding for bone growth to supplement a patient
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http://www.spine-health.com/glossary/h/hydroxyapatite

a mineral, Ca(PO)OH, that is the principal storage form of calcium and phosphorus in bone.
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https://www.infoplease.com/dictionary/hydroxyapatite
(HA) A bioactive calcium phosphate ceramic similar to normal bone, may be applied to implant surfaces.
Found on
https://www.ioshospital.com/orthopaedics/learnMore/glossaryOfTerms.aspx
No exact match found.