ma·nu·bri·um (mə-nbrē-əm, -ny′-)
n. pl. ma·nu·bri·a (-brē-ə)
A body part or process shaped like a handle, especially:
a. The broad upper division of the sternum with which the clavicle and first two ribs articulate. Also called episternum, presternum.
b. The long tapering process of the malleus attached to the central portion of the eardrum.
[Latin, handle, from manus, hand; see man-2 in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.