tri·​gem·​i·​nal | \ trī-ˈje-mə-nᵊl How to pronounce trigeminal (audio) \

Definition of trigeminal

: of or relating to the trigeminal nerve

Examples of trigeminal in a Sentence

Recent Examples on the Web It’s not our sense of taste that’s doing the work here but our trigeminal or chemical sense, which registers sensations of irritation, temperature and touch to alert the body of potential harm. Matt Siegel, WSJ, 28 Aug. 2021 Similarly, your physician can look for other problems that predispose to developing TMJ pain (such as arthritis), or occasionally neurological conditions like trigeminal or glossopharyngeal neuralgia, that look like TMJ dysfunction. Dr. Keith Roach, oregonlive, 6 May 2021 Photic sneezing, for instance, is theorized to possibly result from some kind of cross-communication between the trigeminal and optic nerves. Carolyn L. Todd, SELF, 8 Mar. 2019 Migraines, this theory holds, start when the spreading electrical wave activates the trigeminal ganglion, a cluster of neurons that sit close to the brainstem. Tony Dajer, Discover Magazine, 19 Oct. 2018 With oral herpes, HSV-1 hangs out in the trigeminal ganglion, a nerve cluster in your skull. Becky Little, Smithsonian, 23 Mar. 2018 Idiopathic trigeminal neuritis is the technical diagnosis. Dawn Filos,, 15 Dec. 2017 Bode had trigeminal neuritis, which the neurologist on staff confirmed. Dawn Filos,, 15 Dec. 2017 Nerves from the head, face, neck and mouth converge onto the brainstem in an area called the trigeminal cervical complex, or the TCC. Heidi Mitchell, WSJ, 25 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trigeminal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of trigeminal

1830, in the meaning defined above

History and Etymology for trigeminal

New Latin trigeminus trigeminal nerve, from Latin, threefold, from tri- + geminus twin

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Time Traveler for trigeminal

Time Traveler

The first known use of trigeminal was in 1830

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Dictionary Entries Near trigeminal



trigeminal nerve

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Statistics for trigeminal

Last Updated

2 Sep 2021

Cite this Entry

“Trigeminal.” Dictionary, Merriam-Webster, Accessed 26 Sep. 2021.

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More Definitions for trigeminal


tri·​gem·​i·​nal | \ trī-ˈjem-ən-ᵊl How to pronounce trigeminal (audio) \

Medical Definition of trigeminal

 (Entry 1 of 2)

: of or relating to the trigeminal nerve



Medical Definition of trigeminal (Entry 2 of 2)


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