stop·cock
| \ ˈstäp-ˌkäk
\
\
Definition of stopcock
: a cock for stopping or regulating flow (as through a pipe)
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“Stopcock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stopcock. Accessed 23 May. 2022.
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Time Traveler for stopcock
The first known use of stopcock was in 1584
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