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gypsum

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Gypsoil™ Soil Amendment
Agricultural gypsum loosens clay compacted soil for large crop yield
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gyp⋅sum

  [jip-suhm]
–noun
a very common mineral, hydrated calcium sulfate, CaSO4·2H2O, occurring in crystals and in masses, soft enough to be scratched by the fingernail: used to make plaster of Paris, as an ornamental material, as a fertilizer, etc.
Use gypsum in a Sentence
Origin:
1640–50; < L: chalk < Gk gýpsos chalk, gypsum
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2010.
Cite This Source Link To gypsum
Gypsoil™ Soil Amendment
Agricultural gypsum loosens clay compacted soil for large crop yield
www.gypsoil.com
Soundproof Drywall
Over 1M panels installed. Highest tested STC's. Buy QuietRock locally
www.quietsolution.com
gyp·sum   (jĭp'səm)   
n.  A widespread colorless, white, or yellowish mineral, CaSO4·2H2O, used in the manufacture of plaster of Paris, various plaster products, and fertilizers.

[Middle English gipsum, from Latin gypsum, from Greek gupsos, probably of Semitic origin; akin to Arabic jibs, jiṣṣ, jaṣṣ, from Akkadian gaṣṣu.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

gypsum 
1387, from L. gypsum, from Gk. gypsos "chalk," probably of Sem. origin (cf. Arabic jibs, Heb. gephes "plaster").
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: gyp·sum
Pronunciation: 'jip-s&m
Function: noun
: a widely distributed mineral CaSO4·2H2O consisting ofhydrous calcium sulfate that is used especially as a soil amendment and in making plaster of paris
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Science Dictionary
gypsum   (jĭp'səm)  Pronunciation Key 
A colorless, white, or pinkish mineral. Gypsum occurs as individual blade-shaped crystals or as massive beds in sedimentary rocks, especially those formed through the evaporation of saline-rich water. It is used in manufacturing plasterboard, cement, and fertilizers. Chemical formula: CaSO4·2H2O.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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