Steam is what water becomes when it's heated to boiling and begins to turn into a gas. On a cold morning, you can really see the steam rising off your mug of hot chocolate.

The steam we can see is water vapor, made up of the tiny water drops that form while water condenses. People have put steam to work in many different ways, including cooking, cleaning, and even powering trains and boats. If you "let off steam," you express your frustration or anger to calm yourself down. If you "lose steam," you lose energy or enthusiasm.

Definitions of steam

n water at boiling temperature diffused in the atmosphere

live steam
steam coming from a boiler at full pressure
Type of:
vapor, vapour
a visible suspension in the air of particles of some substance

v emit steam

“The rain forest was literally steaming
Type of:
emit, give off, give out
give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.

v rise as vapor

Type of:
arise, come up, go up, lift, move up, rise, uprise
move upward

v clean by means of steaming

steam-clean the upholstered sofa”
steam clean
Type of:
clean, make clean
make clean by removing dirt, filth, or unwanted substances from

v travel by means of steam power

“The ship steamed off into the Pacific”
Type of:
go, locomote, move, travel
change location; move, travel, or proceed, also metaphorically

v get very angry

“her indifference to his amorous advances really steamed the young man”
Type of:
anger, see red
become angry

v cook something by letting steam pass over it

“just steam the vegetables”
Type of:
transform and make suitable for consumption by heating

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