| 单词 | heme |
| 释义 | heme[ heem ] / him / noun Biochemistry.a deep-red iron-containing blood pigment, C34H32N4O4Fe, obtained from hemoglobin. Origin of hemeFirst recorded in 1920–25; shortened form of hematin Words nearby hemehematotympanum, hematoxylin, hematoxylin-eosin stain, hematozoon, hematuria, heme, Hemel Hempstead, hemelytron, hemeralopia, Hemerocallis, Hemet Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for heme
Medical definitions for hemeheme [ hēm ] n.The deep red, oxygen-carrying, nonprotein, ferrous component of hemoglobin.reduced hematin The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for hemeheme [ hēm ] The deep red, nonprotein, iron-containing component of hemoglobin that carries oxygen. Heme is a porphyrin with an iron atom at its center. One of the free valence electrons of the iron atom of heme is bound to the hemoglobin molecule, while the other is available for binding to an oxygen atom. A hemoglobin molecule contains four hemes. Chemical formula: C34H32FeN4O4. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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