a. The act of vibrating.
b. The condition of being vibrated.
a. A rapid linear motion of a particle or of an elastic solid about an equilibrium position.
b. A periodic process.
3. A single complete vibrating motion; a quiver.
4. Informal A distinctive emotional quality or atmosphere that is sensed or experienced by someone. Often used in the plural: "Miami gives off the same vibrations, the same portent of disaster, but with a difference" (James Atlas).
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.