re·en·trant also re-en·trant (rē-ĕntrənt)
1. Reentering; pointing inward.
2. Music Of or relating to strings that, when plucked in order, make a discontinuously rising and falling sequence of pitches: a lute with reentrant tuning.
A reentrant angle or part.
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.