- Joshua Harold, 1892–1981. See B. and Rand theory.
* * *1) to produce or undergo discomfort or pain <iodine \burns so> <ears \burning from the cold>2) to receive sunburn <she \burns easily> vt to injure or damage by exposure to fire, heat, or radiation <\burned his hand>1) bodily injury resulting from exposure to heat, caustics, electricity, or some radiations, marked by varying degrees of skin destruction and hyperemia often with the formation of watery blisters and in severe cases by charring of the tissues, and classified according to the extent and degree of the injury see FIRST-DEGREE BURN, SECOND-DEGREE BURN, THIRD-DEGREE BURN2) an abrasion having the appearance of a burn <friction \burns> <cold \burn>3) a burning sensation <the \burn of iodine applied to a cut>
* * *n.tissue damage caused by such agents as heat, chemicals, electricity, sunlight, or nuclear radiation. A first-degree burn affects only the outer layer (epidermis) of the skin. In a second-degree burn both the epidermis and the underlying dermis are damaged. A third-degree burn involves damage or destruction of the skin to its full depth and damage to the tissues beneath. Burns cause swelling and blistering, due to loss of plasma from damaged blood vessels. In serious burns, affecting 15% or more of the body surface in adults (10% or more in children), this loss of plasma results in severe shock and requires immediate transfusion of blood or saline solution. Burns may also lead to bacterial infection, which can be prevented by administration of antibiotics. Third-degree burns may require skin grafting.
* * *(burn) injury to tissues caused by contact with dry heat (fire), moist heat (steam or hot liquid), chemicals (e.g., corrosive substances), electricity (current or lightning), friction, or radiant and electromagnetic energy. Burns are classified by the depth of injury as first-, second-, third-, or fourth-degree.
Burns. (A), Superficial second-degree; (B), deep second-degree; (C), third-degree.
Medical dictionary. 2011.