<p><strong>Noun</strong></p><ul><li>water in the form of an invisible gas or vapor.</li><li>water changed to this form by boiling, extensively used for the generation of mechanical power, for heating purposes, etc.</li><li>the mist formed when the gas or vapor from boiling water condenses in the air.</li><li>an exhalation of a vapor or mist.</li><li>Informal. power or energy.</li></ul><p><strong>Verb</strong></p><ul><li>(used without object) to emit or give off steam or vapor.</li><li>to rise or pass off in the form of steam or vapor.</li><li>to become covered with condensed steam, as a window or other surface (often followed by up).</li><li>to generate or produce steam, as in a boiler.</li><li>to move or travel by the agency of steam.</li><li>to move rapidly or evenly: He steamed out of the room.</li><li>Informal. to be angry or show anger: Fans are still steaming from Monday night’s sloppy 5-4 loss.</li><li>(used with object) to expose to or treat with steam, as in order to heat, cook, soften, renovate, or the like.</li><li>to emit or exhale (steam or vapor).</li><li>Informal. to cause to become irked or angry (often followed by up).</li><li>to convey by the agency of steam: to steam the ship safely into port.</li></ul><p><strong>Adjective</strong></p><ul><li>heated by or heating with steam: a steam radiator.</li><li>propelled by or propelling with a steam engine.</li><li>operated by steam.</li><li>conducting steam: a steam line.</li><li>bathed with or affected by steam.</li><li>of or relating to steam.</li></ul>