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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An automatic sensing device that activates an alarm or extinguisher in case of fire.
  • n. A high-temperature thermostat.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a thermostat designed to operate at high temperatures

from The Century Dictionary and Cyclopedia

  • n. An automatic draft-regulator for chimneys, smoke-pipes, and smoke-stacks. See draft-regulator, under regulator.
  • n. An apparatus for maintaining constancy of temperature; a thermostat; specifically, a thermostat for high temperatures.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a thermostat that operates at very high temperatures


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