Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The protein constituent of hemoglobin and myoglobin.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. One of several polypeptides that are the protein components of haemoglobin in blood.

from the GNU version of the Collaborative International Dictionary of English

  • n. a colorless protein obtained by removing heme from hemoglobin; the protein part of hemoglobin.

from The Century Dictionary and Cyclopedia

  • n. The proteid substance which with hematin makes up the larger part of the red blood-corpuscles. It is possibly a mixture of several distinct proteids.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a colorless protein obtained by removing heme from hemoglobin; the oxygen carrying compound in red blood cells

Etymologies

Back-formation from hemoglobin.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

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  • Favorite protein among goblins.

    November 22, 2008