cold sore
noun
a vesicular eruption on the face, usually on or near the mouth, often accompanying a cold or a febrile condition; herpes simplex.
Also called
fever blister.
Origin of cold sore
First recorded in 1905–10
Words nearby cold sore
cold pole,
cold rubber,
cold shoulder,
cold shower,
cold snap,
cold sore,
cold spot,
cold stage,
cold start,
cold steel,
cold storage
British Dictionary definitions for cold sore
cold sore
noun
a cluster of blisters at the margin of the lips that sometimes accompanies the common cold, caused by a viral infection
Technical name: herpes labialis
Medical definitions for cold sore
cold sore
n.
A small blister occurring on the lips and face and caused by a herpes simplex virus.