English edit

Etymology edit

pontoon +‎ -ing

Noun edit

pontooning (uncountable)

  1. The art or process of constructing pontoon bridges.
    • 1905, The Royal Engineers Journal, volume 2, page 284:
      Recruits need do nothing more elaborate than trestle, single-lock, and double-lock bridges and barrel-pier rafts, but they should go through a prolonged course of pontooning.