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  1. Oxford American Dictionary

    petcock

    • IPA[ˈpetˌkäk]

    美式

    • n.
      a small valve, especially in the pipe of a steam boiler or cylinder of a steam engine for drainage or testing.

    • noun: petcock, plural noun: petcocks

    • 更多解釋

    petcock

    • IPA[ˈpɛtkɒk]

    英式

    • n.
      a small valve positioned in the pipe of a steam boiler or cylinder of a steam engine for ...

    Oxford Dictionary