Alexandrite
ahd-5
noun.
A greenish chrysoberyl that appears red in artificial light, used as a gemstone.
The Century Dictionary and Cyclopedia
noun.
A variety of chrysoberyl found in the mica slate of the Ural mountains.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
A form of
chrysoberyl
that displays a colour change dependent upon the light source, along with strong
pleochroism
.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a green variety of chrysoberyl used as a gemstone
Word Usage
"This mineral furnishes us the gem, alexandrite, which is notable for its power to change in color from green in daylight to red in artificial light."
Hypernym
Words that are more generic or abstract
chrysoberyl