zaffre

Tanımlar (İngilizce)

1. isim Cobalt oxide obtained by roasting cobalt ore, used as a blue pigment.

   “If Zaffre or Regulus of Cobalt be dissolved in the same manner in spirit of nitre, or aqua fortis, a reddish colour is produced on exposing the paper to heat.”

2. isim A cobalt blue colour, like that of the pigment.