carbunco
anthrax
noun kahr-BOON-koh Rare
Origin: From Latin 'carbunculus' (small coal, gemstone), diminutive of 'carbo' (coal).
Usage Note
Carbunco is the Spanish name for anthrax, the bacterial disease of livestock and humans (Bacillus anthracis). Beware the false-friend inversion: English 'anthrax' is Spanish carbunco, while English 'carbuncle' (a cluster of boils) is Spanish ántrax. The red-gemstone sense belongs to the related forms carbúnculo/carbunclo, not to carbunco.
Examples
"El carbunco puede ser fatal si no se trata."
Natural Translation
Anthrax can be fatal if untreated.

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