Definition of "backboard" in English

noun

1. (basketball) The flat vertical surface to which the basket is attached.

2. (tennis) A flat vertical wall with the image of a tennis net drawn or painted on it, designed to practice hitting against such that the ball rebounds.

3. (medicine) A spine board.

4. A board placed at the back of a cart, boat, behind a signal, etc.

verb

1. (medicine, transitive) To place (a patient) on a spine board.

noun

1. (nautical) The port or larboard side of a ship