emerald

Emerald is a green gemstone. It's also the name of this particular shade of green. On St. Patrick's Day, you'll see the color emerald everywhere — in cupcake icing and maybe even in your beer.

Green things are called emerald because of the emerald itself, which is a green, transparent form of beryl and a precious gemstone. Gemstones are found in many forms of jewelry, and they're especially loved in Ireland, which is also known as the Emerald Isle. Like many gemstone names, emerald has a long pedigree in many languages: most immediately French, Latin, and Greek.

Definitions of emerald
  1. noun
    a green transparent form of beryl; highly valued as a gemstone
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    type of:
    beryl
    the chief source of beryllium; colored transparent varieties are valued as gems
    transparent gem
    a gemstone having the property of transmitting light without serious diffusion
  2. noun
    a transparent piece of emerald that has been cut and polished and is valued as a precious gem
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    type of:
    gem, jewel, precious stone
    a precious or semiprecious stone incorporated into a piece of jewelry
  3. noun
    the green color of an emerald
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    type of:
    green, greenness, viridity
    green color or pigment; resembling the color of growing grass
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