1.AdjectiveUsed other than figuratively or idiomatically: see steaming, hot: very hot in a way that involves giving off steam or extremely hot water vapour.
"Don't touch that radiator! It's steaming hot!"
2.AdjectiveVery hot in a way that involves visible water vapour.
"Those horses are steaming hot. He's got to give that team a rest in the shade soon or there'll be trouble."
3.AdjectiveVery hot.
"Watch out — the chrome parts of the car are steaming hot from the sun."