炎暑 (えんしょ)heat wave; intense heat

heat wave; intense heatnoun (common) (futsuumeishi), nouns which may take the genitive case particle 'no'

炎暑, its kanji, and other words that share them.Open this graph

Kanji in 炎暑

肺炎はいえんpneumonia
肝炎かんえんhepatitis
炎ほのおflame; blaze
炎上えんじょうgoing up in flames; destruction by fire (esp. of a large building)
火炎瓶かえんびんMolotov cocktail; petrol bomb
炎症えんしょうinflammation; irritation
炎天えんてんblazing heat; scorching sun
中耳炎ちゅうじえんotitis media; inflammation of the middle ear
暑さあつさheat (of the weather); hotness
猛暑もうしょheat wave; fierce heat
残暑ざんしょlate summer heat; lingering summer heat
暑いあついhot; warm
暑中しょちゅうheight of summer; high summer
暑中見舞しょちゅうみまいsummer greeting card; inquiry after someone's health in the hot season
暑中見舞いしょちゅうみまいsummer greeting card; inquiry after someone's health in the hot season
蒸し暑いむしあついhumid; sultry

See how 炎暑 connects to the rest of Japanese.