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heme

play
noun \ˈhēm\

Definition of heme

  1. :  the deep red iron-containing prosthetic group C34H32N4O4Fe of hemoglobin and myoglobin



Origin and Etymology of heme

International Scientific Vocabulary, from hematin


First Known Use: 1925


Medical Dictionary

heme

noun

Medical Definition of heme

  1. :  the deep red iron-containing prosthetic group C34H32N4O4Fe of hemoglobin and myoglobin that is a ferrous derivative of protoporphyrin and readily oxidizes to hematin or hemin—called also protoheme



Variants of heme

or chiefly British

haem

\ˈhēm\play

Learn More about heme

  1. Medical Dictionary: Definition of heme Britannica.com: Encyclopedia article about heme


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