from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The red variety of tourmaline, used as a gemstone.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a red to violet variety of tourmaline used as a gemstone
from the GNU version of the Collaborative International Dictionary of English
- n. A variety of tourmaline varying in color from a pale rose to a deep ruby, and containing lithium.
from The Century Dictionary and Cyclopedia
- n. A red or pink variety of tourmalin found on the island of Elba, in Siberia, in Brazil, and at Paris in Maine. The ruby in the imperial crown of Russia is believed to be a rubellite.
Latin rubellus, red; see rubella + -ite1.(American Heritage® Dictionary of the English Language, Fourth Edition)