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calomel

American  
[kal-uh-mel, -muhl] / ˈkæl əˌmɛl, -məl /

noun

Pharmacology.
  1. a white, tasteless powder, Hg 2 Cl 2 , used chiefly as a purgative and fungicide.


calomel British  
/ ˈkæləˌmɛl, -məl /

noun

  1. a colourless tasteless powder consisting chiefly of mercurous chloride, used medicinally, esp as a cathartic. Formula: Hg 2 Cl 2

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of calomel

1670–80; < New Latin calomelas coined from Greek kaló ( s ) fair + mélas black; allegedly so called because its original preparation involved turning black powder into white


Example Sentences

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See Examples For:

Their patients rarely suffered any mercury poisoning from the treatments because calomel has a very low solubility, as suggested by its very small Ksp:

From Textbooks ● Feb. 14, 2019

Although most mercury compounds are now known to be poisonous, eighteenth-century physicians used calomel as a medication.

From Textbooks ● Feb. 14, 2019

The carbonate and bicarbonate of soda tend to alkalize the system; the colon bacilli prevent putrefaction and toxemia; calomel and purge clean out the gall bladder and bowels.

From Time Magazine Archive

One doctor reported a patient who took so much calomel that his teeth fell out, then the upper and lower jawbones came out "in the form of horse shoes."

From Time Magazine Archive

To ease the dying man, he administered a dose of calomel and placed loaves of hot bread around his body.

From "The Namesake" by Jhumpa Lahiri

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