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regulator pin
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noun
either of two pins on the regulators of certain timepieces, one on each side of the hairspring, that can be moved to adjust the rate of the timepiece.
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Which of the following nouns has an irregular plural form?
Words nearby regulator pin
regulation, Regulation T, Regulation U, regulator, regulator gene, regulator pin, regulatory, regulatory gene, regulatory risk, regulatory sequence, reguline
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022