or chiefly Brit  hae*ma*tin  n 1  :  a brownish black or bluish black derivative C₃₄H₃₃N₄O₅Fe of oxidized heme containing iron with a valence of three : also  :  any of several similar compounds  2  :  HEME .
 
 
 
Similar sounding terms:  he·ma·tein 
 
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