Gypsum

noun

Definitions

Noun
  1. 1
    A mineral consisting of hydrated calcium sulphate. When calcinated, it forms plaster of Paris. countable, uncountable

    "Besides being abundant, gypsum is easily refined into a powder for plaster or formed into sheets of wallboard."

  2. 2
    a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris) wordnet

Etymology

From Latin gypsum, from Ancient Greek γύψος (gúpsos). Doublet of gesso.

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