blackboard

blackboard
/blak"bawrd', -bohrd'/, n.
a sheet of smooth, hard material, esp. dark slate, used in schools, lecture rooms, etc., for writing or drawing on with chalk. Also called chalkboard. Cf. greenboard.
[1815-25; BLACK + BOARD]

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Universalium. 2010.

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  • blackboard — 1823, from BLACK (Cf. black) + BOARD (Cf. board) (n.1). Blackboard jungle inner city school rife with juvenile delinquency is from Evan Hunter s novel title (1954) …   Etymology dictionary

  • Blackboard — Black board (bl[a^]k b[=o]rd ), n. A broad board painted black, or any black surface on which writing, drawing, or the working of mathematical problems can be done with chalk or crayons. It is much used in schools. In late 20th century similar… …   The Collaborative International Dictionary of English

  • blackboard — ► NOUN ▪ a large board with a dark surface for writing on with chalk …   English terms dictionary

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  • blackboard */ — UK [ˈblækˌbɔː(r)d] / US [ˈblækˌbɔrd] noun [countable] Word forms blackboard : singular blackboard plural blackboards a large black or green surface fixed to a classroom wall for writing on with chalk …   English dictionary

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