The complex formed by H2S (or sulfides) and ferric ion in methemoglobin. SYN: sulfhemoglobin.

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sulf·met·he·mo·glo·bin (sulf″mət-heґmo-glo″bin) hemoglobin with a sulfur atom on one of its porphyrin rings, so that it is ineffective for transporting oxygen and has a green color; see sulfhemoglobinemia. Called also sulfhemoglobin.

Medical dictionary. 2011.

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  • sulfhemoglobin — SYN: sulfmethemoglobin. * * * sulf·he·mo·glo·bin .səlf hē mə .glō bən or chiefly Brit sul·phae·mo·glo·bin .hē mə glō bən n a green pigment formed by the reaction of hemoglobin with a sulfide in the presence of oxygen or hydrogen peroxide and… …   Medical dictionary

  • sulfhemoglobinemia — A morbid condition due to the presence of sulfhemoglobin in the blood; it is marked by a persistent cyanosis, but the blood count does not reveal any special abnormality in that fluid; it is thought to be caused by the action of hydrogen …   Medical dictionary

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