Definition of blisters:
(n) :
A small bubble between the layers of the skin that contains watery or bloody fluid and is caused by friction and pressure, burning, freezing, chemical irritation, disease, or infection.
(v) :
(intransitive) To have a blister form.
(v) :
(transitive) To raise blisters on.
(v) :
(intransitive) To break out in blisters.
(n) :
A swelling on a plant.
(n) :
A bubble, as on a painted surface.