1. a soldier who builds, maintains, or operates pontoon bridges and floating structures
Usage: military; also spelled 'pontooneer'

Examples

• The pontoniers worked through the night to construct a temporary bridge across the river.
• Military pontoniers are trained in rapid deployment of floating structures.
• During the crossing, the pontoniers secured the pontoon boats in position.
• The engineer corps included skilled pontoniers from multiple regiments.