[foh-kuh l]


of or relating to a focus.

Origin of focal

From the New Latin word focālis, dating back to 1685–95. See focus, -al1
Related formsfo·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for focal

central, important, main, nucleus, principal

Examples from the Web for focal

Contemporary Examples of focal

Historical Examples of focal

British Dictionary definitions for focal



of or relating to a focus
situated at, passing through, or measured from the focus
Derived Formsfocally, adverb
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 focal

1690s, from Modern Latin focalis; see focus + -al (1).

Online Etymology Dictionary, © 2010 Douglas Harper

focal in Medicine




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