Definitions

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

  • n. A protein. No longer in scientific use.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A complex biomolecule predominantly made of polypeptides. Found in all living matter.
  • n. Any organic material rich in proteid molecules considered a dietary source of essential amino acids.
  • n. A protein.
  • n. An essential nitrogen-containing component of organic matter.
  • adj. Of or pertaining to proteins.
  • adj. Containing protein.

from the GNU version of the Collaborative International Dictionary of English

  • n. an older, imprecise term replaced by protein.

from The Century Dictionary and Cyclopedia

  • n. A substance formerly supposed to contain protein as an essential ingredient.
  • n. In zoöl, an amphibian of the family Proteidæ.

Etymologies

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