Definition of "nanodiamonds" []

• Plural form of nanodiamond. (noun)

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• "Scientists first put forward the idea that a comet was behind the extinctions after tiny crystals of carbon, known as nanodiamonds, were found in 12,900 year old sediment layers."
• "Daulton and others say the nanodiamonds were the last hope for the space collison theory."
• "Because of their size they are known as nanodiamonds and are believed to be formed in the intense heat and pressure of a meteor or comet impact."