steam
Formssteams, steaming, steamed
- 1The hot gaseous form of water, produced when water boils and changes from a liquid into a gas.
Steam billowed from the kettle as the water reached a rolling boil.
The bathroom filled with steam after her long, hot shower.
Similarvapor
Note
The core sense, and an old one. Old English stēam meant steam and hot breath, and also anything that gives off vapor, and even blood. It came from a Germanic word for vapor and breath. The Indo-European root behind it covered whirling, wafting, smoke and haze, so the later uses for breath and mist return to where the word began.
- 2Water vapor held under pressure and used for heating, cooking, or to provide mechanical energy.
The factory's turbines were driven by high-pressure steam.
Steam hissed through the pipes, warming each room in the house.
- 3Anger that has been held back and built up inside, ready to be released.
Years of being ignored had built up a head of steam in him.
He vented his steam on the punching bag instead of his coworkers.
Note
Here the engine image is a safety valve: anger builds like pressure and has to be let out. The set phrase is blow off steam, usually for a harmless release, such as a walk outside, rather than an attack on someone. A head of steam can mean either rage or momentum, so the context decides which.
- 4
- 5The inner energy or driving force that keeps something moving forward or making progress.
The campaign gathered steam as more volunteers joined.
He finished the marathon under his own steam, refusing all help.
Similarmomentum, impetus, energy
Note
A figure borrowed from the vapor that drives engines, and most at home in the idiom under one's own steam: by one's own effort, with nobody carrying or pushing you. Irvin Shrewsbury Cobb, in Ladies and Gentlemen (1927), has people put steam into a job, as one might stoke a boiler. It is almost always uncountable. You have more steam or less, and rarely a steam.
- 6To cook food by exposing it to steam rather than boiling or frying it.
Steam the dumplings until the wrappers turn translucent.
Many cooks steam broccoli to keep its bright green color.
Note
The kitchen verb takes the food as its object: you steam artichokes, dumplings or broccoli. The method keeps the food out of the water, which is why recipes reach for it to keep color and texture. When the food itself becomes the subject, the verb turns intransitive, as in the artichokes are steaming.
- 7The process of cooking food by exposing it to steam.
A brief steam keeps the greens crisp and bright.
The recipe calls for a ten-minute steam over high heat.
Note
A cook's noun that turns countable despite its usual mass use: a ten-minute steam, a brief steam, with an article and often a length of time in front. Give the carrots a steam follows the same pattern as give it a stir or a rinse, where the noun names one round of the action rather than the vapor itself.
- 8To rise or escape upward as vapor from a warm or wet surface.
The wet rooftops steam in the early morning sun.
Fresh manure steamed in the frosty paddock.
Note
The subject is the vapor or the warm surface it rises from: breath steams in winter air, and wet roofs steam in the sun. Away completes the verb when a substance slowly vanishes. Robert Boyle (1661) describes dissolved amber that "little by little it steamed away into the air." Compare the venting verb, where a kettle or engine gives the steam off.
- 9To produce or vent steam, as a machine or kettle does.
The engines steam loudly as they build up pressure.
The radiator steamed all through the cold night.
Note
On the footplate it becomes a verdict. An engine that steams freely makes its steam easily, and 'Balmore', writing in 1961 on French locomotives, found the Chapelon steamed almost too freely. Older use is plain and vivid: John Dryden's The Indian Emperour (1665) has a ghost hovering over warm blood "that steems into the Air."
- 10To move forward with great or excessive determination.
She steamed past the slower walkers without a word.
Reporters steam toward any hint of scandal.
Similarcharge, rush, barrel, storm
Note
The engine's force passes to people and campaigns: someone steams off, steams into the box, or steams to victory. It suggests unstoppable momentum and sometimes bluster. A man storms off to lecture fruit pickers, and Malouda arrives in the penalty area in Chris Whyatt's BBC match report of 2010. The image grows from travel under steam power.
- 11
- 12To expose something to steam in order to soften, shape, or prepare it.
Boatbuilders steam the oak planks before curving them around the hull.
She steamed the velvet gently to lift the crushed pile.
- 13The cloud of tiny water droplets that hangs in the air when water vapor meets colder air and condenses.
Steam curled up from the bowl of noodles as she set it on the table.
On frosty mornings, steam drifts off the hot spring where the warm water meets the icy air.
Note
What most people point to as steam is, strictly, not water in its gaseous form at all. The plume over soup or a hot spring is a cloud of tiny droplets: vapor that has met cooler air and condensed. Keep the two apart when precision matters; in everyday speech one word covers both. Frosty breath is the same kind of cloud, which is why people speak of steam on the breath.
- 14
- 15To travel using steam power, as a steamship or locomotive does.
The fleet steamed north through the night toward the harbor.
Cargo vessels steam between ports on tight schedules.
Similarsail
Note
A verb of motion that wants a direction. Ships steam out of the harbor or around the Mediterranean, and trains steam across bridges, as an express does over the Tay Bridge in O. S. Nock's Railway Magazine account of 1947. Edgar Rice Burroughs's The Return of Tarzan (1913) has Clayton ask whether a friend means "to steam to China via the south pole."
- 16Travel accomplished by riding a steam-powered vehicle.
Before air travel, steam was how most people made long journeys.
The shift from steam to diesel changed how quickly goods reached market.
- 17To cause someone to feel angry or resentful.
His constant excuses steam me more than the missed deadline itself.
Nothing steams a coach faster than a careless turnover late in the game.
Similaranger, annoy, irritate, infuriate, irk
Note
Here the anger is caused rather than felt: something steams you. It favors the frame "it steams me to see…", with an infinitive or clause naming the offense, and the person angered as the object. Bothers and galls fit the same slot. The intransitive fuming at something puts the angry person in subject position instead.
- 18To raise steam, as in firing up a steam locomotive's boiler.
The fireman steamed the boiler steadily as the train neared the grade.
Crews steam their engines well before departure to build full pressure.
Note
A railway verb whose object is the engine itself, often called her. Paul Clifton, writing in 2023, quotes a plan to examine locomotive 198, "then steam her, and operate her." To steam an engine is to light it up and bring it to working pressure, the step between overhaul and running. It does not mean simply making vapor.
- 19To be cooked by exposure to steam rather than direct heat or water.
Fish steams quickly and stays moist when wrapped in parchment.
The buns steam for ten minutes until they puff up and soften.
Note
Here the food does the steaming: the artichokes are steaming in the pot, and the cook drops out of the sentence. It is the intransitive partner of the cook's transitive verb. Used figuratively, it turns on people. I'm steaming in this coat means being uncomfortably hot, as if cooking inside one's clothes. Keep that apart from steaming with anger, where the heat is temper.
- 20Predating digital technology and old-fashioned in character.
He prefers his steam typewriter to any laptop.
The newsroom still relies on steam techniques that predate the internet.
Similarold-fashioned, analog, antiquated
Note
A playful retronym that casts anything pre-digital as belonging to the railway age. It sits only before a noun and has no comparative: steam radio, steam television, steam journalism. Steam radio is the established phrase, used even by a CBC radio veteran for his own medium. The others follow its pattern, usually with a wink at old habits.
- 21Any exhalation or vapor given off by a body or substance.
Physicians of the age feared the noxious steam rising from stagnant pools.
a steam of rich, distilled perfumes
1634, [John Milton], A Maske Presented at Ludlow CastleNote
An obsolete sense wider than water: any breath or vapor a thing gives off, whether fragrant or foul. John Milton's A Maske, first performed in 1634, has "a steam of rich, distilled perfumes," where a modern writer would say a cloud of scent. It keeps alive the Old English range of the core sense. In modern prose it reads as deliberately antique, so it suits period color.
- 22To exhale; to breathe out or give off as vapor.
like inward fire that outward smoke had steemd
1590, Edmund Spenser, The Faerie QueeneNote
An obsolete verb for breathing something out, close to the hot-breath meaning of the old noun. Edmund Spenser's The Faerie Queene (1590) spells it steemd: "like inward fire that outward smoke had steemd." Today it reads as Spenserian, and breathe out or exhale do the plain work. It is the verb that matches the old "any exhalation" noun.
- 23Fencing conducted without the use of any electric scoring equipment.
Showing meanings only.
Practice
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Origin
This word comes from Middle English "steem" or "stem" and Old English "stēam," meaning steam, hot breath, or that which gives off vapor. It traces back to Proto-Germanic "*staumaz" (steam, vapor, breath) and ultimately to a Proto-Indo-European root meaning to whirl or waft. It is related to Dutch "stoom," West Frisian "steam," and Latin "fūmus" (smoke, steam).