Definition of pontonier in English:

pontonier

(also pontoneer, pontooneer, pontoonier)

noun

Military
  • A person in charge of pontoons or the construction of pontoon bridges.

Origin

Mid 18th century. From ponton, variant of pontoon + -ier, perhaps after French pontonnier boatman, ferryman, person who collects fees for ferry passage, engineer in charge of bridge construction.

Pronunciation

pontonier

/ˌpɒntə(ʊ)ˈnɪə/