a mixture of impure oxides of cobalt, used in making smalt and as a blue pigment in ceramic glazes, glassmaking, etc.
Origin of zafferfrom French zafre or Italian zaffera, probably from Arabic ?ufr, yellow copper, brass
An impure oxide of cobalt, used to produce a blue color in enamel and in the making of smalt.
Origin of zafferItalian zaffera from Old French safre perhaps alteration of safir sapphire ; see sapphire . or from Arabic &slowdot;ufr yellow copper, brass from 'a&slowdot;far yellow &slowdot;pr2
(countable and uncountable, plural zaffers)
- Alternative form of zaffre.