verdetn.

/ˈvəːdɛt/

Etymology: < Old French verdet (16th cent., = Provençal verdet , Catalan verdet , Spanish verdete , Portuguese verdete , Italian verdetto ), diminutive of verd verd n.

1. Chemistry. An acetate of copper (see quots.).

ΘΚΠ

the world > matter > chemistry > chemical substances > salts > [noun] > salts named by atomic number > acetates > of copper

verdet1558

verdetto1598

1558 W. Ward tr. G. Ruscelli Secretes Alexis of Piemount f. 118 Take verdet, or Verdegrise, Vitriol of Almain, and salt Armoniacke.

1559 W. Ward tr. G. Ruscelli Secretes iii. i. 53 Take Spanishe greene called Verdet,..Vitrioll, and Alome of eche equally.

1673 J. Ray Observ. Journey Low-countries 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.

1863 H. Watts Dict. Chem. I. 14 Acetates of Copper... The normal salt (C²H³O²)²Cu″, called also Crystallised Verdigris, Verdet,..is produced by dissolving cupric oxide or common verdigris in acetic acid.

1896 E. G. Lodeman Spraying of 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.

ΘΚΠ

the world > plants > particular plants > plants perceived as weeds or harmful plants > poisonous or harmful plants > harmful or parasitic fungi > [noun] > causing disease in plants

bunt1800

Sclerotium1813

Alternaria1834

oidium1836

Septoria1836

conk1851

Rhizopus1854

snow-mould1855

vine-mildew1855

vine-fungus1857

bramble-brand1867

Microsphaera1871

wood-fungus1876

sphacelia1879

blue mould1882

orange fungus1882

cluster-cup1883

hop-mildew1883

powdery mildew1886

cladosporium1887

shot-hole fungus1897

verdet1897

wound-fungus1897

fusarium1907

verticillium1916

rhynchosporium1918

coral-spot1923

blind-seed fungus1939

sclerotinia1950

1897 T. C. Allbutt et al. 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.

This entry has not yet been fully updated (first published 1916; most recently modified version published online June 2021).

单词	verdet
释义	verdetn. /ˈvəːdɛt/ Etymology: < Old French verdet (16th cent., = Provençal verdet , Catalan verdet , Spanish verdete , Portuguese verdete , Italian verdetto ), diminutive of verd verd n. 1. Chemistry. An acetate of copper (see quots.). ΘΚΠ the world > matter > chemistry > chemical substances > salts > [noun] > salts named by atomic number > acetates > of copper verdet1558 verdetto1598 1558 W. Ward tr. G. Ruscelli Secretes Alexis of Piemount f. 118 Take verdet, or Verdegrise, Vitriol of Almain, and salt Armoniacke. 1559 W. Ward tr. G. Ruscelli Secretes iii. i. 53 Take Spanishe greene called Verdet,..Vitrioll, and Alome of eche equally. 1673 J. Ray Observ. Journey Low-countries 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. 1863 H. Watts Dict. Chem. I. 14 Acetates of Copper... The normal salt (C²H³O²)²Cu″, called also Crystallised Verdigris, Verdet,..is produced by dissolving cupric oxide or common verdigris in acetic acid. 1896 E. G. Lodeman Spraying of 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. ΘΚΠ the world > plants > particular plants > plants perceived as weeds or harmful plants > poisonous or harmful plants > harmful or parasitic fungi > [noun] > causing disease in plants bunt1800 Sclerotium1813 Alternaria1834 oidium1836 Septoria1836 conk1851 Rhizopus1854 snow-mould1855 vine-mildew1855 vine-fungus1857 bramble-brand1867 Microsphaera1871 wood-fungus1876 sphacelia1879 blue mould1882 orange fungus1882 cluster-cup1883 hop-mildew1883 powdery mildew1886 cladosporium1887 shot-hole fungus1897 verdet1897 wound-fungus1897 fusarium1907 verticillium1916 rhynchosporium1918 coral-spot1923 blind-seed fungus1939 sclerotinia1950 1897 T. C. Allbutt et al. 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. This entry has not yet been fully updated (first published 1916; most recently modified version published online June 2021). < n.1558
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