blister vs papilla

blister

noun
  • A swelling on a plant. 

  • A type of pre-formed packaging made from plastic that contains cavities. 

  • A form of smelted copper with a blistered surface. 

  • An enclosed pocket of air, which may be mixed with water or solvent vapor, trapped between impermeable layers of felt or between the membrane and substrate. 

  • A bubble, as on a painted surface. 

  • Hyponyms: bulla, vesicle, vesicula. 

  • A cause of annoyance. 

  • 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. 

  • Something applied to the skin to raise a blister; a vesicatory or other applied medicine. 

verb
  • To break out in blisters. 

  • To sear after blaching. 

  • To raise blisters on. 

  • To have a blister form. 

  • To criticise severely. 

papilla

noun
  • A small fleshy projection on a plant. 

  • Any of the small protuberances on the upper surface of the tongue often containing taste buds. 

  • A vascular process of connective tissue extending into and nourishing the root of a hair, feather, or developing tooth. 

  • Any of the vascular protuberances of the dermal layer of the skin extending into the epidermal layer and often containing tactile corpuscles. 

How often have the words blister and papilla occurred in a corpus of books? (source: Google Ngram Viewer )