Ethiops
Ethiops , noun
[New Latin See Ethiop.]
(Old Chemistry) A black substance; -- formerly applied to various preparations of a black or very dark color. [Obsolete]
Collocations (3)
Ethiops martial (Old Chemistry) , black oxide of iron.
Ethiops mineral (Old Chemistry) , black sulphide of mercury, obtained by triturating mercury with sulphur.
Ethiops per se (Old Chemistry) , mercury in finely divided state, having the appearance of a dark powder, obtained by shaking it up or by exposure to the air.