chalk
noun
/t͡ʃɑk/
,
/t͡ʃɔk/
,
/t͡ʃɔːk/
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- (uncountable) A soft, white, powdery limestone (calcium carbonate, CaCO3).
- (countable) A piece of chalk, or nowadays processed compressed gypsum (calcium sulfate, CaSO4), that is used for drawing and for writing on a blackboard (chalkboard).
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Kreide
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- (uncountable, climbing, gymnastics) A white powdery substance used to prevent hands slipping from holds when climbing, or losing grip in weight-lifting or gymnastics, sometimes but not always limestone-chalk, often magnesium carbonate (MgCO3).
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Magnesiapulver
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