Definition of "vent" []

• A means of escape or release from confinement; an outlet: give vent to one's anger. (noun)
• An opening permitting the escape of fumes, a liquid, a gas, or steam. (noun)
• The small hole at the breech of a gun through which the charge is ignited. (noun)
• Zoology The excretory opening of the digestive tract in animals such as birds, reptiles, amphibians, and fish. (noun)
• Geology The opening of a volcano in the earth's crust. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Picture for one moment that every old, disheveled homeless person you see curled up in a street corner, or sprawled out over a vent is a small newborn."
• "The plumbing 'vent' is a 2 pipe T'eed at 2nd floor level from a stackpipe that is running horizontally through the floor slab - there are no interception points in case of blockage."
• "So ... spraying canned air into a lappy's vent is very bad?"