regulator

regulate +‎ -or.

• IPA^(key): /ɹɛɡ.juː.leɪt.ə/

regulator (plural regulators)

1. A device that controls or limits something.

   The voltage regulator stopped working and the resulting overload destroyed the device.

2. A person or group that sets standards of practice, especially those established by law.
3. A very accurate clock, used by clockmakers to measure the timekeeping of each newly made clock.
4. (genetics) A gene involved in controlling the expression of one or more other genes.
5. (rail transport) A device that controls the supply of steam to the cylinders of a steam locomotive.
6. (historical) A bulldozer (member of intimidating group of white US Southerners).

• voltage regulator
• battery regulator

• rector
• regimen
• regiment
• régime
• region
• regular
• regulate
• regulation
• rule

• regulator in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• regulator in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• regulator at OneLook Dictionary Search

rēgulātor

1. second-person singular future passive imperative of rēgulō
2. third-person singular future passive imperative of rēgulō