n. pl. pon·tes (pŏntēz)
1. A slender tissue joining two parts of an organ.
2. A band of nerve fibers on the ventral surface of the brainstem that links the medulla oblongata and the cerebellum with upper portions of the brain. Also called pons Varolii.
[Latin pōns, bridge; see pent- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.