Definitions

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

  • noun Any of various short-chain peptides found in brain tissue, such as endorphins.

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

  • noun biochemistry Any of several peptides, such as endorphins, that function as neurotransmitters.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

neuro- +‎ peptide

Examples

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