1. 
   pyrostat
   [n] - a thermostat that operates at very high temperatures
   Found op http://www.webdictionary.co.uk/definition.php?query=pyrostat
   
   
2. 
   pyrostat
   noun a thermostat that operates at very high temperatures
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=pyrostat
   
   
3. 
   pyrostat
   1) A thermostat that operates at very high temperatures 2) Thermoregulator 3) Thermostat
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/pyrostat/1
   
   

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