pe·dun·cle (pĭ-dŭngkəl, pēdŭng′kəl)
1. Botany The stalk of an inflorescence or a stalk bearing a solitary flower in a one-flowered inflorescence.
2. Zoology A stalklike structure in invertebrate animals, usually serving as an attachment for a larger part or structure.
3. Anatomy A stalklike bundle of nerve fibers connecting different parts of the brain.
4. Medicine The stalklike base to which a polyp or tumor is attached.
[New Latin pedunculus, diminutive of Latin pēs, ped-, foot; see ped- in the Appendix of Indo-European roots.]
pe·duncu·lar (pĭ-dŭngkyə-lər) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.