from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A protein. No longer in scientific use.

from The Century Dictionary.

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

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Physiol. Chem.) an older, imprecise term replaced by protein.
  • noun (Physiol. Chem.), [archaic] one of a class of proteid substances, present in some animal tissues and fluids, that make the body immune to certain infectious diseases by destroying or rendering inactive the toxic products of bacterial growth; -- this is an older term replaced by more precise modern immunological concepts such as antibody and immunoglobulin.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

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


Sorry, no etymologies found.



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