Word parts regulate + -or Pronunciation (UK) IPA (key): /ˈrɛɡ.jʊ.leɪ.tə/ or /ˈrɛɡ.jə.leɪ.tə/ (US) IPA (key): /ˈrɛɡ.ju.leɪ.tɚ/ or /ˈrɛɡ.jə.leɪ.tɚ/ Audio (UK)(file) Noun Singular regulator Plural regulators (countable) A regulator is a person or device that controls, limits, or regulates something. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads