the vapour into which water is converted when heated, forming a white mist of minute water droplets in the air

a cloud of steam

steam was rising from the mugs of coffee

she wiped the steam off the mirror

give off or produce steam

a mug of coffee was steaming at her elbow

cook (food) by heating it in steam from boiling water

steam the vegetables until just tender

(of a ship or train) travel somewhere under steam power

the 11.54 steamed into the station

be or become extremely agitated or angry

you got all steamed up over nothing!

after steaming behind the closed door in his office, he came out and screamed at her