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fever blister

fever blister

1 5.1
A small painful sore on the lip or face caused by the herpes virus
  • noun
  • /ˈfiːvər ˈblɪstər/
  • US
translation icon : herpes labial
  • I was always told a story about my Uncle Clarence Andrews as a kid, who had fair skin and fever blisters, asking his older brother, Raymond—Waymond, do wasses burn your wipps?
  • cold sores (a.k.a. fever blisters)
  • cold sores

Examples

  • These are, you know, fever blisters.

    Fiction book (2001)
  • A hot-pink fever blister is budding on the corner of her mouth.

    Fiction book (1996)
  • Fever blisters.

    Fiction book (1991)
  • Jennifer nods and licks her fever blister distractedly.

    Fiction book (1996)
  • The presence of mucosal lesions compatible with fever blisters was noted by a sole blinded investigator.

    Academic text (2003)
  • After feeling a tingling sensation, she noticed a painful fever blister forming on her lip.

  • He tried to cover the fever blister with lipstick, but it still looked painful and irritating.

  • People often experience discomfort when they have a fever blister caused by the herpes virus.

Synonyms

blister
vsfever blister
52 2.4

A raised bump filled with fluid on the skin or a surface

is the specific viral lip or face sore rather than a general skin swelling
cold sore
vsfever blister
8 3.2

Small painful blisters on the lips or around the mouth that a virus causes

focuses more on the lips and face specifically than the broader mouth area
herpes labialis
vsfever blister
  • Specialized
4.3

A viral infection that causes painful blisters on the lips or around the mouth

is the common everyday name for that same viral lip illness
oral herpes
vsfever blister
  • Specialized
5.1

A contagious infection that causes painful cold sores on or around the lips

is narrower meaning a single small lip lesion caused by the same virus

Surface Forms

fever blister singular

Morphology

fever + blister

The noun combines 'fever' (high body temperature/illness) and 'blister' (a raised, fluid-filled bubble), so a B1 learner who knows both words can infer it denotes a blister associated with illness—typically the small sore on the lip. Although it is a specific medical term for a cold sore (HSV-1), the meaning is directly compositional and predictable from its parts.

Etymology

Fever blister is named after the simple picture of a small blister that often appears when someone has a fever or feels sick. That's why it now means a small, painful blister on the lip or face caused by a virus.