protoporphyrin

/ (ˌprəʊtəʊˈpɔːfɪrɪn) /

noun

a type of porphyrin that, when combined with an iron atom, forms haem, the oxygen-bearing prosthetic group of the red blood pigment haemoglobin

Nearby words

  1. protoplast,
  2. protopod,
  3. protopodite,
  4. protopope,
  5. protoporphyria,
  6. protoporphyrin ix,
  7. protopresbyter,
  8. protosemitic,
  9. protospasm,
  10. protostar

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


Medicine definitions for protoporphyrin

protoporphyrin

[ prō′tō-pôrfə-rĭn ]

n.

A metal-free porphyrin that combines with iron to form the heme of iron-containing proteins.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.