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


 - 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.

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