1. Of or relating to a rodent of the subfamily Murinae, which includes the house mouse and the brown rat.
2. Caused, transmitted by, or affecting such a rodent: murine leukemia.
A murine rodent.
[Latin mūrīnus, of mice, from mūs, mūr-, mouse; see mūs- in the Appendix of Indo-European roots.]
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.