cold sore definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a sore, caused by a viral infection, consisting of little blisters that form in or around the mouth during a cold or fever; herpes simplex
cold sore definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A small blister occurring on the lips and face and caused by herpes simplex. Also called fever blister, herpes labialis.
cold sore - Medical Definition
A small blister occurring on the lips and face and caused by a herpes simplex virus.