[cal.o.mel] n [prob. fr. (assumed) NL calomelas, fr. Gk kalos beautiful + melas black--more at melan-] (1676): a white tasteless compound used esp. as a fungicide and insecticide and occas. in medicine as a purgative--called also mercurous chloride
CALOMEL
Meaning of CALOMEL in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012