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malleolus

[muh-lee-uh-luh s]
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noun, plural mal·le·o·li [muh-lee-uh-lahy] /məˈli əˌlaɪ/. Anatomy.
  1. the bony protuberance on either side of the ankle, at the lower end of the fibula or of the tibia.
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Origin of malleolus

1685–95; < Latin: small hammer, mallet, equivalent to malle(us) hammer + -olus -ole1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for malleolus

malleolus

noun plural -li (-ˌlaɪ)
  1. either of two rounded bony projections of the tibia and fibula on the sides of each ankle joint
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Derived Formsmalleolar, adjective

Word Origin

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

Word Origin and History for malleolus

n.

bone knob at the ankle, 1690s, from Latin malleolus, diminutive of malleus "a hammer" (see mallet). Anatomical use is said to date to Andreas Vesalius (1514-1564).

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Online Etymology Dictionary, © 2010 Douglas Harper

malleolus in Medicine

malleolus

(mə-lēə-ləs)
n. pl. mal•le•o•li (-lī′)
  1. A rounded bony prominence, such as those on either side of the ankle joint.
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Related formsmal•leo•lar (-lər) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.