a. The formation of a close human relationship, as between friends: "He says he has rediscovered the comforts of male bonding in a Washington men's group" (Marilyn Chase).
b. The emotional and physical attachment occurring between a parent or parent figure, especially a mother, and offspring, that usually begins at birth and is the basis for further emotional affiliation.
a. A dental technique in which a material such as plastic or porcelain is attached to the surface of a discolored or damaged tooth.
b. The technique of using adhesives to attach orthodontic brackets or other appliances to the teeth.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 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.