screwman

noun screw·man \-ümən\

Definition of screwman

plural

screwmen

  1. 1 :  one who passes metal through a rolling mill and reduces it to desired thickness by adjusting screws that regulate roller clearance

  2. 2 :  one who helps to prepare the way for and to set up power shovels and cranes —called also jackman

  3. 3 :  one who loads bales of cotton onto a riverboat

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