ethiops martial

1 definition found

ethiops martial - Collaborative International Dictionary of English v.0.48 :

  Ethiops \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
     [ae]thiops.] [Obs.]
     [1913 Webster]
  
     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. Ethmoid