stop·cock /ˈstɑpˌkɑk/
龍頭,止水栓,開關
Stop·cock n.
1. A bib, faucet, or short pipe, fitted with a turning stopper or plug for permitting or restraining the flow of a liquid or gas; a cock or valve for checking or regulating the flow of water, gas, etc., through or from a pipe, etc.
2. The turning plug, stopper, or spigot of a faucet. [R.]
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stopcock
n : faucet consisting of a rotating device for regulating flow
of a liquid [syn: cock, turncock]