backboard Meaning, Definition & Usage

  1. noun a raised vertical board with basket attached; used to play basketball
    basketball backboard.
    • he banked the shot off the backboard
  2. noun a board used to support the back of someone or something

WordNet

Back"board` noun
Etymology
2nd back, n. + board.
Definitions
  1. A board which supports the back wen one is sitting; specifically, the board athwart the after part of a boat.
  2. A board serving as the back part of anything, as of a wagon.
  3. A thin stuff used for the backs of framed pictures, mirrors, etc.
  4. A board attached to the rim of a water wheel to prevent the water from running off the floats or paddies into the interior of the wheel. W. Nicholson.
  5. A board worn across the back to give erectness to the figure. Thackeray.

Webster 1913