Hemin

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hemin \He"min\, n. [Gr. a"i^ma blood.] (Physiol. Chem.)
     A substance, in the form of reddish brown, microscopic,
     prismatic crystals, formed from dried blood by the action of
     strong acetic acid and common salt; -- called also
     Teichmann's crystals. Chemically, it is a hydrochloride of
     hematin.


     [1913 Webster]
  
     Note: The obtaining of these small crystals, from old blood
           clots or suspected blood stains, constitutes one of the
           best evidences of the presence of blood.
           [1913 Webster]

From WordNet (r) 2.0 [wn]:

  hemin
       n : a reddish-brown chloride of heme; produced from hemoglobin
           in laboratory tests for the presence of blood [syn: {protohemin}]