[ muh-lee-uh-luh s ]
/ məˈli ə ləs /

noun, plural mal·le·o·li [muh-lee-uh-lahy] /məˈli əˌlaɪ/. Anatomy.

the bony protuberance on either side of the ankle, at the lower end of the fibula or of the tibia.

Origin of malleolus

1685–95; < Latin: small hammer, mallet, equivalent to malle(us) hammer + -olus -ole1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for malleoli

British Dictionary definitions for malleoli


/ (məˈliːələs) /

noun plural -li (-ˌlaɪ)

either of two rounded bony projections of the tibia and fibula on the sides of each ankle joint

Derived Forms

malleolar, adjective

Word Origin for malleolus

C17: diminutive of Latin malleus hammer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for malleoli


[ mə-lēə-ləs ]

n. pl. mal•le•o•li (-lī′)

A rounded bony prominence, such as those on either side of the ankle joint.

Related forms

mal•leo•lar (-lər) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.