pyrostat
American Heritage Dictionary:
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py·ro·stat
(pī'rə-stăt') 
n.
n.
- An automatic sensing device that activates an alarm or extinguisher in case of fire.
- A high-temperature thermostat.
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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