熱ねつ疲ひ労ろうMeaningsNoun1. thermal fatigue (e.g. in structures)2. heat exhaustionKanji used熱heat疲tired労laborComposed of熱ねつheat; fever; temperature; zeal; passion; enthusiasm; mania; craze; rageNoun疲ひ労ろうfatigue; weariness; exhaustion; tiredness; fatigue (of metal, etc.)Noun