Definition of "Blister" :
noun: (pathology) an elevation of the skin filled with serous fluid
noun: (botany) a swelling on a plant similar to that on the skin
noun: a flaw on a surface resulting when an applied substance does not adhere (as an air bubble in a coat of paint)
verb: get blistered
"Her feet blistered during the long hike."
verb: cause blisters to form on
"The tight shoes and perspiration blistered her feet."
verb: subject to harsh criticism
"The Senator blistered the administration in his speech on Friday."