• A large (greater than 5 - 10 mm) intraepidermal/subepidermal cavity filled with clear, serosanguineous or turbid fluid.
  NICHD Pediatric Terminology
  U.S. National Cancer Institute, 2021
• A large (greater than 5-10 mm) intraepidermal/subepidermal cavity filled with clear, serosanguineous or cloudy fluid.
  NCI Thesaurus
  U.S. National Cancer Institute, 2021
• (blister) A collection of fluid underneath the top layer of skin.
  U.S. FDA Glossary
  U.S. Food & Drug Administration, 2021
• (blister) A fluid-filled sac in the outer layer of skin. It can be caused by rubbing, heat, or diseases of the skin.
  NCI Dictionary of Cancer Terms
  U.S. National Cancer Institute, 2021
• (blister) A small pocket of fluid that develops between the upper layers of skin; often caused by friction or burns.
  Harvard Dictionary of Health Terms
  Harvard Medical Publishing, 2011
• (blister) Visible accumulations of fluid within or beneath the epidermis.
  CRISP Thesaurus
  National Institutes of Health, 2006
• Blister, a rounded elevation of the skin containing clear fluid, caused by a separation either between layers of the epidermis or between the epidermis and the dermis. Blisters are classified as vesicles if they are 0.5 cm (0.2 inch) or less in diameter and as bullae if they are larger. Blisters...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2020