metalloporphyrin
(mĭ-tăl′ō-pôr′fə-rĭn)- A compound, such as heme, formed by the combination of a porphyrin with a metal.
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.