To use a snorkel.
A snorkel parka.
A retractable tube fitted in diesel-engine submarines to allow sufficient ventilation that the engines may be used at periscope depth.
A hollow tube, held in the mouth, or mounted on and opening into a diving mask, used by swimmers for breathing underwater.
To snuff; to breathe or puff out; to snort.
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 sell; to vend.
To allow to escape through a vent.
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.
An opening through which gases, especially air, can pass.
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.