peduncle(redirected from pineal peduncle)
Also found in: Dictionary, Thesaurus, Medical.
1. the stalk of a plant bearing an inflorescence or solitary flower
2. Anatomy a stalklike structure, esp a large bundle of nerve fibres within the brain
3. Pathol a slender process of tissue by which a polyp or tumour is attached to the body
4. Biology another name for pedicel
A band of white fibers joining different portions of the brain.
A flower-bearing stalk.
A stalk supporting the fruiting body of certain thallophytes.
The stalk supporting the whole or a large part of the body of certain crinoids, brachiopods, and barnacles.