Gypsum Definition

jĭpsəm
noun
A very soft, monoclinic mineral, CaSO42H2O, commonly found with other evaporites in sedimentary rock and used to make plaster of Paris and cement; hydrous calcium sulfate.
Webster's New World

Other Word Forms of Gypsum

Noun

Singular:
gypsum
Plural:
gypsums

Origin of Gypsum

  • Middle English gipsum from Latin gypsum from Greek gupsos probably of Semitic origin Arabic jibs, jiṭṭ, jaṭṭ from Akkadian gaṭṭu

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin gypsum, from Ancient Greek γύψος (gupsos).

    From Wiktionary

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