porphyrinogen
American Heritage Stedman's Medical Dictionary:
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por·phy·rin·o·gen
Saunders Veterinary Dictionary:
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porphyrinogen
Partly reduced precursor form of porphyrin rings which can then have metals such as iron introduced to produce heme or other porphyrin structures.
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American Heritage Stedman's Medical Dictionary
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company.
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