Steam is a vapor, particularly water heated to the boiling point and then converted to a vapor or gas.(noun)
An example of steam is vapor coming out of a hot pot of soup.
The definition of steam is using water vapor.(adjective)
An example of steam used as an adjective is in the phrase "steam engine," which means an engine that runs on water vapor.
Steam is defined as to give off a vapor or to expose to a vapor.(verb)
An example of to steam is to cook broccoli in a covered pot with a little water.
See steam in Webster's New World College Dictionary
Origin: ME steme < OE steam, akin to Du stoom, WFris steam
See steam in American Heritage Dictionary 4
Origin: Middle English steme
Origin: , from Old English stēam.
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