Meanings
nounoctapeptide (plural octapeptides)
plural octapeptides
- An oligopeptide having eight amino acids.
a, COS-7 cells were transfected with expression plasmids directing the expression of each of the indicated PrP deletion mutants (green, octapeptide repeats; red, globular domain; SS, signal sequence).
2009 February 26, Juha Laurén et al., “Cellular prion protein mediates impairment of synaptic plasticity by amyloid-β oligomers”, in Nature, volume 457, number 7233, →DOI, pages 1128–1132
Origin
- Proto-Indo-European*oḱtṓw
- Proto-Hellenic*oktṓ
- Ancient Greekὀκτώ (oktṓ)
- Ancient Greekὀκτᾰ- (oktă-)
- Englishocta-
- Proto-Indo-European*pekʷ-
- Proto-Indo-European*pékʷ-ye-
- Proto-Hellenic*pét͏̌t͏̌ō
- Ancient Greekπέσσω (péssō)bf.
- Ancient Greekπέπτω (péptō)
- Ancient Greekπεπτόν (peptón)
- GermanPepton
- Englishpeptone
- Proto-Indo-European*dʰeh₁-
- GermanPepton
- GermanPeptid
- Englishpeptide
- Englishoctapeptide
Cite this entry
APA
octapeptide. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/octapeptide
MLA
“octapeptide.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/octapeptide. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “octapeptide,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/octapeptide.
Source: octapeptide on Wiktionary, CC BY-SA 4.0.