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selenite

[sel-uh-nahyt, si-lee-nahyt] /ˈsɛl əˌnaɪt, sɪˈli naɪt/
noun
1.
Mineralogy. a variety of gypsum, found in transparent crystals and foliated masses.
2.
Chemistry. a salt of selenious acid.
Origin of selenite
1560-1570
1560-70; < Latin selēnītēs < Greek selēnī́tēs líthos moonstone; see Selene, -ite1
Related forms
selenitic
[sel-uh-nit-ik] /ˌsɛl əˈnɪt ɪk/ (Show IPA),
selenitical, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for selenite

selenite

/ˈsɛlɪˌnaɪt/
noun
1.
a colourless glassy variety of gypsum
Word Origin
C17: via Latin from Greek selēnitēs lithos moonstone, from selēnē moon; so called because it was believed to wax and wane with the moon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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