Definitions for gypsumˈdʒɪp səm

This page provides all possible meanings and translations of the word gypsum

Random House Webster's College Dictionary

gyp•sumˈdʒɪp səm(n.)

  1. a soft mineral, hydrous calcium sulfate, CaSO4∙2H2O, occurring in massive or fibrous form and also as alabaster and selenite: used to make plaster of Paris and as a fertilizer.

    Category: Mineralogy

Origin of gypsum:

1640–50; < L < Gk gýpsos chalk, gypsum

Princeton's WordNet

  1. gypsum(noun)

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

Wiktionary

  1. gypsum(Noun)

    A mineral consisting of the hydrated calcium sulphate. When calcined, it forms plaster of Paris.

Webster Dictionary

  1. Gypsum(noun)

    a mineral consisting of the hydrous sulphate of lime (calcium). When calcined, it forms plaster of Paris. Selenite is a transparent, crystalline variety; alabaster, a fine, white, massive variety

Freebase

  1. Gypsum

    Gypsum is a very soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It can be used as a fertilizer, is the main constituent in many forms of plaster and is widely mined. A very fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia and the Nottingham alabasters of medieval England. It is the definition of a hardness of 2 on the Mohs scale of mineral hardness. It forms as an evaporite mineral and as a hydration product of anhydrite.

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