By extension, a process in which other gases (such as carbon dioxide or nitrogen or argon) are circulated through or mixed with a substance (usually liquid), sometimes with the consequence of increasing the transfer of air into the same liquid at the surface due to the induced circulation.
The process by which air is circulated through or mixed with a substance such as soil or a liquid.
An opening through which gases, especially air, can pass.
An opening in a volcano from which lava or gas flows.
Opportunity of escape or passage from confinement or privacy; outlet.
A small aperture.
The opening at the breech of a firearm, through which fire is communicated to the powder of the charge.
Ventriloquism.
A slit in the seam of a garment.
Emission; escape; passage to notice or expression; publication; utterance.
The excretory opening of lower orders of vertebrates.
A rant; a long session of expressing verbal frustration.
In steam boilers, a sectional area of the passage for gases divided by the length of the same passage in feet.
To allow gases to escape.
To determine the sex of (a chick) by opening up the anal vent or cloaca.
To ventilate; to use a ventilator; to use ventilation.
To express a strong emotion.
To snuff; to breathe or puff out; to snort.
To sell; to vend.
To allow to escape through a vent.