Gypsum
Everybody's Encyelopedia · 1912 · p. 17
a calcium sulphate usually found as a mineral deposit, in some places constituting rock ma es. It may be of any age.
Bu kavram başka kaynaklarda da geçiyor
The American Illustrated Medical Dictionary (1913)
The Nurse's Dictionary of Medical Terms and Nursing Treatment (1909)
Webster's Condensed Dictionary- A Condensed Dictionary of the English Language (1909)
Chamber's Twientieth Century Dictionary (1908)
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
Chandler's Encyclopedia (1898)
The Student's Medical Dictionary (1896)
An Illustrated Dictionary of Words Used In Art and Archealogy. (1883)
A Dictionary of Arts, Manufactures and Mines (1840)
Zell's Condensed Dictionary
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