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{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

A soft compact calcite, CaCO3, with varying amounts of silica, quartz, feldspar, or other mineral impurities, generally gray-white or yellow-white and derived chiefly from fossil seashells; usually used to write on boards in schools.

Usage examples (37)
  • There was so much chalk dust from the eraser that the students started coughing.
  • And in what we call our chalk talk segment, when should police officers make an arrest and when should they simply walk away?
  • N.B. The two last lines wrote in chalk by Lieut. -col.
  • Ordinary blackboard chalk is just as good as grease on the plate. for more
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