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Collins

pyr-

  

      combining form   a variant of pyro- before a vowel  
Dictionnaire anglais Collins English definition-Thesaurus  
Collins
pyro-   ,   (before a vowel)   pyr-         
      combining form  
1    denoting fire, heat, or high temperature  
pyromania, pyrometer     
2    caused or obtained by fire or heat  
pyroelectricity     
3      (Chem)  
a    denoting a new substance obtained by heating another  
pyroboric acid is obtained by heating boric acid     
b    denoting an acid or salt with a water content intermediate between that of the ortho- and meta- compounds  
pyro-phosphoric acid     
4      (Mineralogy)  
a    having a property that changes upon the application of heat  
pyromorphite     
b    having a flame-coloured appearance  
pyroxylin     

Dictionnaire anglais Collins English definition-Thesaurus  

Consulter aussi:

pyro-, py-, pyre, PY

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