Enter a clue or pattern or both:
The Clue
Devices controlling heating units (11 letter answer)
The Answer
THERMOSTATS
Tags
Notes
The answer THERMOSTATS is so rare that it appears less than once every 2500 puzzles.
Definition
THERMOSTAT as a noun:
1. (thermostat, thermoregulator) = a regulator for automatically regulating temperature by starting or stopping the supply of heat
THERMOSTAT as a verb:
1. control the temperature with a thermostat