haem
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haem
(hēm)n. Chiefly British
Variant of heme.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
haem
(hiːm) orheme
n
(Biochemistry) biochem a complex red organic pigment containing ferrous iron, present in haemoglobin
[C20: shortened from haematin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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Noun | 1. | haem - a complex red organic pigment containing iron and other atoms to which oxygen binds pigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) haemoglobin, Hb, hemoglobin - a hemoprotein composed of globin and heme that gives red blood cells their characteristic color; function primarily to transport oxygen from the lungs to the body tissues; "fish have simpler hemoglobin than mammals" myoglobin - a hemoprotein that receives oxygen from hemoglobin and stores it in the tissues until needed cytochrome - (biochemistry) a class of hemoprotein whose principal biological function is electron transfer (especially in cellular respiration) |
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