simple past tense and past participle of backboard

(medicine) Placed on a spine board. / Fitted with a board at the back.

present participle of backboard

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

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

(nautical) The port or larboard side of a ship

plural of backboard

Third-person singular simple present indicative form of backboard