noun
burning passion; flaming desire
Literary word for intense, fiery passion, often romantic or creative.
彼の胸には、芸術への情炎が燃えていた。
A burning passion for art blazed in his heart.
二人の間に情炎が燃え上がった。
A flaming passion ignited between the two of them.
情熱 is the common word for passion or enthusiasm. 情炎 is more literary and emphasizes a fiery, almost destructive intensity.
Compound of 情 (emotion, passion) and 炎 (flame). The exact historical derivation is uncertain, but the word evokes the image of a blazing fire of emotion.