Definition of "peridot" [per•i•dot]

• A yellowish-green variety of olivine used as a gem. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "- A special birthstone called peridot is reserved only for those born in August."
• "The peridot was the winner, as it was chartreuse-colored and interesting."
• "Olivine is a magnesium iron silicate that exists throughout the universe - in distant galaxies and local comets - as well as in earthly jewelry stores, in a pristine, gem-quality form called peridot."