Hypertext Webster Gateway: "thermostat"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Thermostat \Ther"mo*stat\, n. [Thermo- + Gr. ? to make to
stand.] (Physics)
A self-acting apparatus for regulating temperature by the
unequal expansion of different metals, liquids, or gases by
heat, as in opening or closing the damper of a stove, or the
like, as the heat becomes greater or less than is desired.
From WordNet (r) 1.7 (wn)
thermostat
n : a regulator for automatically regulating temperature by
starting or stopping the supply of heat [syn: {thermoregulator}]
v : control the temperature with a thermostat
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