1. One who delivers lectures, especially professionally.
a. A member of the faculty of a college or university usually having qualified status without rank or tenure.
b. A faculty member ranking below an assistant professor.
c. The academic rank held by such a faculty member.
3. Chiefly British A university teacher, especially one ranking next below a reader.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. 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.