Definition of emerald in English:


Line breaks: em¦er|ald
Pronunciation: /ˈɛm(ə)r(ə)ld


  • 1A bright green precious stone consisting of a chromium-rich variety of beryl: [as modifier]: an emerald necklace
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    • The shining diamonds, rubies, emeralds, peridots, topaz, sapphires have now acquired a special status for the wearer.
    • The blue-silver metal was cast in an ornate fashion, and white diamonds spotted with emeralds, beryls and emeralds crusted the edges of the metal.
    • Synthetic ruby, sapphire, spinel, emerald, opal, and turquoise are commonly encountered, but synthesis of diamond for gem cutting has so far been very limited.
  • 2 [mass noun] (also emerald green) A bright green colour: the sea glistened in shades of emerald and jade
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    • The bodice was plain, starched white, while the skirt itself a deep emerald.
    • The necklace she wore around her neck glowed a deep emerald as he did so.
    • The beautiful emeralds of the South American rainforests became a warm blue.
  • 3 (also emerald moth) A slender-bodied green moth, the colour of which tends to fade as the moth ages.
    • Several genera in the family Geometridae
  • 4A hawker dragonfly with a metallic green body.
    • Cordulia and other genera, family Corduliidae
  • 5A small hummingbird with bright metallic green plumage and darker wings and tail, found mainly in the area of the Caribbean and Central America.
    • Three genera, in particular Chlorostilbon and Amazilia, family Trochilidae: numerous species


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  • Bright green in colour: beyond the airport lay emerald hills
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    • To the south, past the tiny level valley the group was in, was an ocean of rolling emerald hills, as far as anyone could see.
    • She was holding her dad's hand as they all walked down the dirt road alongside pastures of emerald hills.
    • The emerald hills of South America appear lived-in and intimate.


Middle English: from Old French e(s)meraud, ultimately via Latin from Greek (s)maragdos, via Prakrit from Semitic (compare with Hebrew bāreqeṯ, from bāraq 'flash, sparkle').

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