Simple Definition of regulator

from our Learner's Dictionary

regulator

noun

plural regulators
1
: a device for controlling the level or amount of something (such as speed or temperature)
a pressure regulator
2
: an official who works for the part of the government that controls a public activity (such as banking or insurance) by making and enforcing rules
federal/state regulators

Cite this Entry

“Regulator.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/regulator. Accessed 23 Jun. 2026.

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