pinsetter

[pin-set-er]
noun
  1. a mechanical apparatus in a bowling alley that places all of the pins into position at one time and removes pins that have been knocked down.
  2. pin boy.

Origin of pinsetter

First recorded in 1915–20; pin + setter
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018