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trigeminal

American  
[trahy-jem-uh-nl] / traɪˈdʒɛm ə nl /

adjective

  1. of or relating to the trigeminal nerve.


noun

  1. 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.

trigeminal British  
/ traɪˈdʒɛmɪnəl /

adjective

  1. anatomy of or relating to the trigeminal nerve

"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

Etymology

Origin of trigeminal

1820–30; < New Latin trigemin ( us ) ( Latin: triple, equivalent to tri- tri- + geminus twin, double) + -al 1


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

One of the most surprising discoveries involved the trigeminal nerve, a major facial nerve responsible for facial sensation and certain motor functions.

From Science Daily ● May 23, 2026

Trigeminal neuralgia is usually caused by compression of the trigeminal nerve - which transmits sensations of pain and touch from your face, teeth and mouth to the brain.

From BBC ● Feb. 3, 2026

She was battling the chronic pain disorder trigeminal neuralgia.

From New York Times ● Mar. 19, 2024

Before kicking “Boast Rattle” off, Ayers pauses to set a complimentary mood: “I’m gonna get into the Boasting spirit and talk to you guys about a brain disease I have called trigeminal neuralgia,” he begins.

From Los Angeles Times ● Apr. 21, 2023

The middle period of life is not, according to my experience, fruitful in first attacks of trigeminal neuralgia.

From Neuralgia and the Diseases that Resemble it by Francis E. Anstie

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