noun
: heat transmitted by radiation as contrasted with that transmitted by conduction or convection
electrical ceiling cables that provide invisible radiant heat from above — just like the sun — Sweet's Catalog Service
noun
: heat transmitted by radiation as contrasted with that transmitted by conduction or convection
electrical ceiling cables that provide invisible radiant heat from above — just like the sun — Sweet's Catalog Service
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012