blackboard definition

  • noun:
    • A smooth, hard, dark-colored panel for composing on with chalk.
    • a big flat work surface, finished with black slate or a similar material, which can be written upon with chalk and afterwards erased; a chalkboard
    • a diverse board painted black, or any black colored surface where writing, drawing, or perhaps the doing work of mathematical dilemmas can be carried out with chalk or crayons. It is a lot found in schools. In late twentieth century similar panels of a green slate along with some coloured light became common; wrioting regarding record bioards could be completed with chalk, but writing in the white panels is completed with coloured pencils, such as for instance oil pens, which simply leaves a trace that may be effortlessly erased. The newer boards, usualy known as chalkboards tend to be nonetheless still often referred to as blackboards.
    • A board painted black, found in schools, lecture-rooms, etc., for composing, attracting, or ciphering with chalk.
    • thus Any prepared surface, since plaster or slate, useful for exactly the same function.
    • sheet of slate; for composing with chalk
  • verb:
    • To use a blackboard to aid in a casual conversation.

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