haem
Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia, Wikipedia.
Related to haem: Heam
heme
(hēm)1. The porphyrin chelate of iron in which the iron is Fe(II) (Fe2+); the oxygen-carrying, color-furnishing, prosthetic group of hemoglobin.
2. Iron complexed with nonporphyrins but related tetrapyrrole structures (e.g., biliverdin heme).
Synonym(s): reduced hematin, haem.
Synonym(s): reduced hematin, haem.
[G. haima, blood]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
haem
orheme
a ring-like chemical structure containing an atom of ferrous iron that is bound as a PROSTHETIC GROUP to each POLYPEPTIDE CHAIN within HAEMOGLOBIN and MYOGLOBIN, giving blood and muscle their characteristic red colour.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
heme
(hēm)1. The oxygen-carrying, color-furnishing, prosthetic group of hemoglobin.
2. Iron complexed with nonporphyrins but related tetrapyrrole structures.
Synonym(s): reduced hematin, haem.
Synonym(s): reduced hematin, haem.
[G. haima, blood]
Medical Dictionary for the Dental Professions © Farlex 2012