a person or thing that pushes.

Slang . a peddler of illegal drugs.

Aeronautics . an airplane that is driven by pusher propellers.

Nautical . one of the masts abaft the mizzen on a sailing vessel having more than three masts, either the sixth or seventh from forward. Compare driver ( def. 10b ) , spanker ( def. 1b ) .

Railroads . a helper attached to the rear of a train, usually to provide extra power for climbing a steep grade.

noun

dealer , peddler