rescue equipment consisting of a device that fills with air and retards your fall
source: WordNet 3.0
sloping channel through which things can descend
source: WordNet 3.0
A framework, trough, or tube, upon or through which objects are made to slide from a higher to a lower level, or through which water passes to a wheel.
source: Webster 1913
verb
jump from an airplane and descend with a parachute
