| 单词 | chalcanth | 
| 释义 | † chalcanthchalcanthumn. Obsolete.   An old name for blue vitriol (sulphate of copper), and for a kind of ink made therefrom; sometimes also applied to green vitriol (sulphate of iron). ΚΠ 1678    E. Phillips New World of Words 		(new ed.)	  				Calcanth, a Chymical word, being the same as Vitriol. 1717    G. Berkeley in  Life & Lett. 		(1871)	 586  				A vapour sulphurous with some tincture of nitre, calcanthus, and bitumen. 1718    J. Quincy Pharmacopœia Officinalis 14/1  				Vitriol, when all its Moisture is dry'd away, becomes Chalcanthum. 1724    N. Bailey Universal Etymol. Eng. Dict. 		(ed. 2)	  				Chalcanthum, Vitriol calcined to a Redness. This entry has not yet been fully updated (first published 1889; most recently modified version published online December 2020). <  | 
	
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