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calomel

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noun cal·o·mel \ˈka-lə-məl, -ˌmel\

Definition of calomel

  1. :  a white tasteless compound Hg2Cl2 used especially as a component of laboratory electrodes, as a fungicide, and formerly in medicine as a purgative —called also mercurous chloride



Origin of calomel

probably from New Latin *calomelas, from Greek kalos beautiful + melas black — more at melan-


First Known Use: 1676


Medical Dictionary

calomel

play
noun cal·o·mel \ˈkal-ə-məl, -ˌmel\

Medical Definition of calomel

  1. :  a white tasteless compound Hg2Cl2 used especially as a fungicide and insecticide and formerly in medicine as a purgative—called also mercurous chloride




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