[uhng-gwuh l]

Origin of ungual

1825–35; < Latin ungu(is) a nail, claw, hoof (akin to Greek ónyx) + -al1
Related formssub·un·gual, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for subungual

Historical Examples of subungual

  • The bony outgrowth from the terminal phalanx of the great toe—known as the subungual exostosis—is described and figured on p. 404.

    Manual of Surgery

    Alexis Thomson and Alexander Miles

  • Subungual exostosis is an osteoma growing from the terminal phalanx of the great toe (Fig. 107).

    Manual of Surgery

    Alexis Thomson and Alexander Miles

British Dictionary definitions for subungual


ungular (ˈʌŋɡjʊlə)

  1. of, relating to, or affecting the fingernails or toenails
  2. of or relating to an unguis

Word Origin for ungual

C19: from Latin unguis nail, claw
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 subungual



"pertaining to a nail or claw," 1834, from Latin unguis "a claw, nail" (cognate with Greek onyx, Old English nægel, Old Norse nagl "nail;" see nail (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper

subungual in Medicine


  1. Beneath a fingernail or toenail.


  1. Of or relating to fingernails or toenails.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.