pontooner|pɒnˈtuːnə(r)| [f. pontoon + -er1.] = pontoneer. 1799Hist. in Ann.Reg. 283/1 The marquis having sent an officer of pontooners..to reconnoitre the banks of the river.1832Southey Penins. War III. 699 The Spaniards could not prevent the pontooners from completing their work.