noun, noun which may take the genitive case particle 'no'
sweltering heat; blazing heat
Intense, oppressive heat, often used in weather reports or literary descriptions. Can modify nouns with の.
The blazing sun beats down.
Today is a sweltering hell.
flames of hell; scorching hell
Compound of 炎 (flame, blaze) and 熱 (heat), literally 'flame heat'. The exact historical derivation is uncertain, but the spelling is conventionally associated with intense, burning heat.