Ethiops /(?)/

E·thi·ops

Ethiops

n.
  1. A black substance; -- formerly applied to various preparations of a black or very dark color. (Old Chem.) [Obs.]

Phrases & Compounds

Ethiops martial
black oxide of iron.
Ethiops mineral
black sulphide of mercury, obtained by triturating mercury with sulphur.
Ethiops per se
mercury in finely divided state, having the appearance of a dark powder, obtained by shaking it up or by exposure to the air.