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gypsum Definition

gyp·sum (jipsəm)

noun

a very soft, monoclinic mineral, CaSO·2HO, commonly found with other evaporites in sedimentary rock and used to make plaster of Paris and cement; hydrous calcium sulfate

Etymology: ME < L < Gr gypsos, chalk, gypsum < Sem

gypsum Usage Examples

Converse of object

  • base: There are quite a few plasters but two main types - gypsum based and cement based.
  • use: This program has described the principle derivatives of gypsum used in dentistry.
  • contain: From the top of the ridge we were able to look down on the next valley which also contains gypsum.
  • include: Minerals formed in this way include gypsum, rock salt, and various nitrates and borates.
  • produce: These units use limestone to absorb the sulfur which produces gypsum as a waste product.
  • add: Adding gypsum to clay soils will help improve soil structure.

Adjective modifier

  • white: You can hike or even dune surf the shifting white gypsum.
  • natural: Over 95 per cent of the natural gypsum come from Rajasthan.
  • pure: In the latter case it will be necessary to gage the lime plaster with gypsum onto a drying initial thin coat of pure gypsum.
  • synthetic: Radioactivity is a major concern where plasterboard is made from synthetic gypsum.
  • dry: Dry gypsum, with no free moisture, contains 21 % chemically bonded water by weight ( Thomas 2002 ).

Modifies a noun

  • plasterboard: Non load bearing walls are built in flue gas gypsum plasterboard which is 100 % recycled.
  • plaster: A layer of sand to protect the ancient gypsum plaster from the new blocks has already been put down.
  • crystal: I have also found gypsum crystals in Doolin river cave which, I think, is the first report of them in Co Clare.
  • mine: A young lad of 15 had been invited to visit his uncle in the gypsum mine that day, he was among the dead.
  • board: Alternatively, plaster on the 10mm lighter colored, gypsum board side of the Maxiboard.
  • product: There is no change to the disposal of waste gypsum products in July 2004.

Noun used with modifier

  • waste: There is no change to the disposal of waste gypsum products in July 2004.
  • mineral: The rocks here are red marls, with bands of the mineral gypsum.

Browse dictionary entries near gypsum

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  5. gypsied
  6. gypseous
  7. gypping
  8. gypper
  9. gypped
  10. gyp
  1. Gypsy
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  6. gyral
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  8. gyrated
  9. gyrating
  10. gyration