1. Of or relating to a magistrate; magisterial.
2. Prepared as specified by a physician's prescription. Used of medicine.
3. Principal; main: the magistral line of fortifications.
[Late Latin magistrālis, belonging to a master, from Latin magister, magistr-, former chief officer of a college; see meg- in the Appendix of Indo-European roots.]
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.