cold sore

noun

Definition of cold sore 

: a group of fluid-filled blisters appearing about or within the mouth that are caused by a herpes simplex virus and upon rupturing form crusts

called also fever blister

— compare canker sore

Examples of cold sore in a Sentence

Recent Examples on the Web

Benzocaine is also used in popular over-the-counter products for toothaches and cold sores in adults, including Orajel and Anbesol and generic drugstore brands. Matthew Perrone, BostonGlobe.com, "FDA warns teething medicines unsafe, wants them off shelves," 24 May 2018 Benzocaine is also used in popular over-the-counter products for toothaches and cold sores in adults, including Orajel and Anbesol and generic drugstore brands. Matthew Perrone, BostonGlobe.com, "FDA warns teething medicines unsafe, wants them off shelves," 24 May 2018 Benzocaine is also used in popular over-the-counter products for toothaches and cold sores in adults, including Orajel and Anbesol and generic drugstore brands. Matthew Perrone, BostonGlobe.com, "FDA warns teething medicines unsafe, wants them off shelves," 24 May 2018 In 2015, a new mom from England shared shocking photos of her newborn daughter covered with cold sores. Katina Beniaris, Woman's Day, "A Mother Is Warning Others After Her Newborn Died of a Virus Caught By a Kiss," 18 July 2017 Benzocaine is also used in popular over-the-counter products for toothaches and cold sores in adults, including Orajel and Anbesol and generic drugstore brands. Matthew Perrone, BostonGlobe.com, "FDA warns teething medicines unsafe, wants them off shelves," 24 May 2018 Benzocaine is also used in popular over-the-counter products for toothaches and cold sores in adults, including Orajel and Anbesol and generic drugstore brands. Matthew Perrone, BostonGlobe.com, "FDA warns teething medicines unsafe, wants them off shelves," 24 May 2018 Still, not every cold sore looks exactly like this. Hannah Orenstein, Seventeen, ""I Have a Cold Sore. Does That Mean I Have Herpes?"," 7 Oct. 2016 Benzocaine is also used in popular over-the-counter products for toothaches and cold sores in adults, including Orajel and Anbesol and generic drugstore brands. Matthew Perrone, BostonGlobe.com, "FDA warns teething medicines unsafe, wants them off shelves," 24 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cold sore.' 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 cold sore

1870, in the meaning defined above

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Statistics for cold sore

Last Updated

5 Aug 2018

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Time Traveler for cold sore

The first known use of cold sore was in 1870

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More Definitions for cold sore

cold sore

noun

English Language Learners Definition of cold sore

: a small sore area around or inside the mouth that is caused by a virus

cold sore

noun

Medical Definition of cold sore 

: a vesicular lesion that typically occurs in or around the mouth, that initially causes pain, burning, or itching before bursting and crusting over, and that is caused by a herpes simplex virus which remains dormant in the body and may be reactivated by a variety of factors (as stress, fever, or sunburn)

called also fever blister

— compare canker sore

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More from Merriam-Webster on cold sore

See words that rhyme with cold sore

Spanish Central: Translation of cold sore

Britannica.com: Encyclopedia article about cold sore

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