Kreide
- The German word for 'chalk', a soft, white, porous sedimentary rock, a form of limestone composed of the mineral calcite. It is commonly used for writing on blackboards or as a drawing material. nounThe teacher used Kreide to write the lesson on the blackboard.Artists often use Kreide for sketching due to its smooth texture.
- In a broader geological context, 'Kreide' refers to the Cretaceous period, a geological era known for its chalk deposits. nounThe Kreide period is known for the extinction of the dinosaurs.Geologists study Kreide deposits to understand Earth's history.