plugman

noun

plug·​man

ˈpləgmən

plural plugmen

1

: the member of a gun crew (as in the U.S. Navy) whose duty is to open and close the breech plug or breechblock in firing

2

: a miner who attends pumps in a mine

3

: a plugger who fastens stoppers in bottoms of billet molds in which copper is to be cast

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