blackboard

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[edit] English

[edit] Etymology

From black + board, because such surfaces were once typically made of black slate.

[edit] Pronunciation

[edit] Noun

blackboard (plural blackboards)

Physicist Paul Dirac at the blackboard.
  1. A large flat surface, finished with black slate or a similar material, that can be written upon with chalk and subsequently erased; a chalkboard

[edit] Related terms

[edit] Translations

[edit] Verb

blackboard (third-person singular simple present blackboards, present participle blackboarding, simple past and past participle blackboarded)

  1. To use a blackboard to assist in an informal discussion.
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