from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of a class of iron-containing proteins important in cell respiration as catalysts of oxidation-reduction reactions.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of various related hemoproteins found in the cells of most organisms, which are an important part of cell respiration.
from The Century Dictionary and Cyclopedia
- In neural., a name given by Nissl to the so-called ‘granules,’ or nerve-cells with scanty cytoplasm incompletely surrounding a small nucleus which does not exceed in size the nucleus of an ordinary leucocyte or neuroglia cell: opposed to *caryochrome cell which has a larger nucleus.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (biochemistry) a class of hemoprotein whose principal biological function is electron transfer (especially in cellular respiration)
From cyto- + Ancient Greek χρῶμα (khrōma, "colour"). (Wiktionary)