| 释义 |
verdet|ˈvɜːdɛt|
[a. OF. verdet (16th c., = Prov. and Cat. verdet, Sp. and Pg. verdete, It. verdetto), dim. of verd verd n.]
1. Chem. An acetate of copper (see quots.).
1558Warde tr. Alexis' Secr. 118 Take verdet, or Verdegrise, Vitriol of Almain, and salt Armoniacke. 1559Ibid. iii. i. 53 Take Spanishe greene called Verdet,..Vitrioll, and Alome of eche equally. 1673Ray Journ. Low C. 454 At Montpellier the best Verdet or Verdegreece is made,..which is..nothing but the rust or scurf of copper calcined by the vapour of wine. 1863Watts Dict. Chem. I. 14 Acetates of Copper... The normal salt (C2H3O2)2Cu{pp}, called also Crystallised Verdigris, Verdet,..is produced by dissolving cupric oxide or common verdigris in acetic acid. 1896E. G. Lodeman Spraying Plants 44 Verdet is an acetate of copper. There are many such combinations, all being known under the general name of verdet, or verdigris.
2. A fungus which grows upon maize.
1897Allbutt's Syst. Med. II. 801 There seems therefore to be some quality in the maize itself, which when acted upon by the ‘verdet’ as the fungus is called, produces a specific poison. |