English edit

Etymology edit

From balance +‎ weight.

Noun edit

balanceweight (plural balanceweights)

  1. Alternative form of balance weight.
    • 1940 December, “Notes and News: Stroudley Locomotives”, in Railway Magazine, page 666:
      [...] it settles the vexed question as to whether Stroudley or R. J. Billinton first introduced crescent-shaped balanceweights into the driving and coupled wheels of L.B. & S.C. locomotives.