of or relating to the trigeminal nerve.


Also called trigeminal nerve. either one of the fifth pair of cranial nerves, consisting of motor fibers that innervate the muscles of mastication, and of sensory fibers that conduct impulses from the head and face to the brain.

Origin of trigeminal

1820–30; < New Latin trigemin(us) (Latin: triple, equivalent to tri- tri- + geminus twin, double) + -al1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for trigeminal

Historical Examples of trigeminal

British Dictionary definitions for trigeminal



anatomy of or relating to the trigeminal nerve

Word Origin for trigeminal

C19: from Latin trigeminus triplet, from tri- + geminus twin
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 trigeminal

1830, from Latin trigeminus "born in threes;" see tri- + geminate.

Online Etymology Dictionary, © 2010 Douglas Harper

trigeminal in Medicine




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