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   gyp·sum

   /ˈjipsəm/

   noun

   • 1. a soft white or gray mineral consisting of hydrated calcium sulfate. It occurs chiefly in sedimentary deposits and is used to make plaster of Paris and fertilizers, and in the building industry.

   Word Origin late Middle English: from Latin, from Greek gupsos.

   Derivatives

   • 1. gypseous adjective
   • 2. gypsiferous adjective

   Scrabble Points: 14

   • G

     2

   • Y

     4

   • P

     3

   • S

     1

   • U

     1

   • M

     3

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