1. Of, belonging to, or restricted to a limited area or neighborhood; local.
2. Relating to or being a local road, especially one in ancient Britain.
3. Mineralogy Approximating, resembling, or taking the place of a fundamental crystalline form or face.
4. Chemistry Of or relating to the consecutive positions on a ring or chain of carbon atoms.
[Latin vīcīnālis, from vīcīnus, neighboring; see VICINITY.]
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.