undecapeptide

noun

un·​deca·​pep·​tide ˌən-ˌdek-ə-ˈpep-ˌtīd How to pronounce undecapeptide (audio)
: a peptide (as substance P) composed of a chain of 11 amino acid residues

Browse Nearby Words

uncus
undecapeptide
undecenoic acid
See all Nearby Words

Cite this Entry

“Undecapeptide.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/undecapeptide. Accessed 20 Apr. 2025.

Copy Citation

Share

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

The Difference Between 'i.e.' and 'e.g.'

'Affect' vs. 'Effect'

Words You Always Have to Look Up

Democracy or Republic: What's the difference?

Every Letter Is Silent, Sometimes: A-Z List of Examples
See More

Popular in Wordplay

See More

What do SCOTUS, POTUS, and FLOTUS mean?

8 Words with Fascinating Histories

8 Words for Lesser-Known Musical Instruments

Birds Say the Darndest Things

10 Words from Taylor Swift Songs (Merriam's Version)
See More

Popular

See More

The Difference Between 'i.e.' and 'e.g.'

What do SCOTUS, POTUS, and FLOTUS mean?

8 Words with Fascinating Histories
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A daily crossword with a twist
name that thing flower edition
Name That Flower Can you tell the difference between a lilac and a...
See All