| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024cal•o•mel (kal′ə mel′, -məl),USA pronunciation n. [Pharm.]- Drugsa white, tasteless powder, Hg2Cl2, used chiefly as a purgative and fungicide. Also called mercurous chloride.
- Neo-Latin calomelas coined from Greek kaló(s) fair + mélas black; allegedly so called because its original preparation involved turning black powder into white
- 1670–80
Collins Concise English Dictionary © HarperCollins Publishers:: calomel /ˈkæləˌmɛl -məl/ n - a colourless tasteless powder consisting chiefly of mercurous chloride, used medicinally, esp as a cathartic. Formula: Hg2Cl2
Etymology: 17th Century: perhaps from New Latin calomelas (unattested), literally: beautiful black (perhaps so named because it was originally sublimed from a black mixture of mercury and mercuric chloride), from Greek kalos beautiful + melas black |