7 letters · 9 points in Scrabble
noun a flaw on a surface resulting when an applied substance does not adhere (as an air bubble in a coat of paint)
noun (botany) a swelling on a plant similar to that on the skin
noun (pathology) an elevation of the skin filled with serous fluid
originFrom Middle English blister, from Old French blestre, from a Germanic source. Compare Middle Dutch blyster (“swelling”), Old Norse blastr (“a blowing”).
Etymology from Wiktionary, CC BY-SA 3.0