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Definition of Petcock
1. Noun. Regulator consisting of a small cock or faucet or valve for letting out air or releasing compression or draining.
Generic synonyms: Regulator
Definition of Petcock
1. Noun. A small valve, spout, or faucet operated by hand, usually used to release pressure or drain fluid. ¹
¹ Source: wiktionary.com
Definition of Petcock
1. a small valve or faucet [n -S]