E"thi*ops (?) n. [NL. See Ethiop.] Old Chem.
A black substance; -- formerly applied to various preparations of a black or very dark color.
[Written also
Aethiops.] [Obs.]
Ethiops martial Old Chem., black oxide of iron. -- Ethiops mineral Old Chem., black sulphide of mercury, obtained by triturating mercury with sulphur. -- Ethiops per se Old Chem., mercury in finely divided state, having the appearance of a dark powder, obtained by shaking it up or by exposure to the air.
© Webster 1913.