The source of sunburn's dermatological damage is ultraviolet (UV) rays, a more energetic form of light than what we use for vision. The UV we usually contend with comes in two flavors: UVA, which primarily causes wrinkling, and the stronger UVB, which produces the telltale signs of sunburn.
Dictionary entry overview: What does inscrutable mean? â¢ INSCRUTABLE (adjective) The adjective INSCRUTABLE has 1 sense: 1. of an obscure nature Familiarity information: INSCRUTABLE used as an adjective is very rare.
Definition of insulate for English Language Learners. : 1  to add a material or substance to (something) in order to stop heat, electricity, or sound from going into or out of it. : 2  to prevent (someone or something) from dealing with or experiencing something : to keep (someone or something) separate from something unpleasant, dangerous, etc.