Stopcock
Pronunciation : Stop"cock`
Part of Speech : n.
Definition : 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.]
Source : Webster's Unabridged Dictionary, 1913