Snifting
Pronunciation : Snift"ing
Part of Speech : a.
Definition : Defn: from Snift. Snifting valve, a small valve opening into the atmosphere from the cylinder or condenser of a steam engine, to allow the escape of air when the piston makes a stroke; -- so called from the noise made by its action.
& n.
Source : Webster's Unabridged Dictionary, 1913