metenkephalin

M3E1T1E1N1K5E1P3H4A1L1I1N1

noun

An endogenous opioid peptide neurotransmitter found naturally in many parts of the animal and human body; one of the two forms of enkephalin (the other being leuenkephalin)

Similar
OGFopioid growth factor
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Meanings

nounmetenkephalin (uncountable)

alternative met-enkephalin

  1. uncountablebiochemistryAn endogenous opioid peptide neurotransmitter found naturally in many parts of the animal and human body; one of the two forms of enkephalin (the other being leuenkephalin)

    PRO, an endogenous opioid itself, is also the precursor of the opiate neuropeptides metenkephalin and leuenkephalin.

    2007 December 11, Craig Howard Kinsley, Massimo Bardi, Kate Karelina, Brandi Rima, Lillian Christon, Julia Friedenberg, Garrett Griffin, “Motherhood Induces and Maintains Behavioral and Neural Plasticity across the Lifespan in the Rat”, in Archives of Sexual Behavior, volume 37, number 1, →DOI

    Synonyms: OGF, opioid growth factor

Synonyms & antonyms

nounAn endogenous opioid peptide neurotransmitter found naturally in many parts of the animal and human body; one of the two forms of enkephalin (the other being leuenkephalin)

Similar
OGFopioid growth factor

Origin

From Met + enkephalin.

Full word history & related roots →
Cite this entry
APA

metenkephalin. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/metenkephalin

MLA

“metenkephalin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/metenkephalin. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “metenkephalin,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/metenkephalin.

Source: metenkephalin on Wiktionary, CC BY-SA 4.0.