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.
Use "peridot" in a sentence
"- 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."