Definition of calomel in English:

calomel

Line breaks: calo|mel
Pronunciation: /ˈkaləmɛl
 
/

noun

[mass noun]
  • Mercurous chloride, a white powder formerly used as a purgative.
    • Chemical formula: Hg2Cl2
    More example sentences
    • Surgeons relied on strong mercury purgatives, such as calomel or ‘blue pill’.
    • Reports of mercury poisoning from beauty creams containing calomel, or mercurous chloride, also surface regularly.
    • It includes the famous Livingstone Rousers - the combination of purgatives including calomel, quinine, rhubarb, essence of jalop and opium - which Livingstone found effective in treating his bouts of malaria.

Origin

late 17th century: modern Latin, perhaps from Greek kalos 'beautiful' + melas 'black' (perhaps because it was originally obtained from a black mixture of mercury and mercuric chloride).

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