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alexandrite

 - 2 dictionary results

al⋅ex⋅an⋅drite

[al-ig-zan-drahyt, -zahn-]
–noun Mineralogy.
a variety of chrysoberyl, green by daylight and red-violet by artificial light, used as a gem.

Origin:
1830–40; named after Alexander I of Russia; see -ite 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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al·ex·an·drite   (āl'ĭg-zān'drīt')   
n.  A greenish chrysoberyl that appears red in artificial light, used as a gemstone.

[German Alexandrit, after Alexander I.]
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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