Rare but attested verb meaning to equip or cross with pontoons.
Definitions
To build, provide, or support with pontoons. The engineers pontooned the temporary crossing in less than an hour.
To fit (an aircraft or other vehicle) with pontoons so that it can float. They pontooned the small plane to enable water landings.
Used attributively to modify nouns such as "bridge", "aircraft", etc.
Definitions
Relating to or designed for use with pontoons. Army engineers assembled a pontoon bridge across the swollen river.