Noun
half pipe (plural half pipes)
Alternative form of half-pipe
half-pipe (plural half-pipes)
(skateboarding, snowboarding, skiing, BMX, rollerskating, kickscootering, etc.) A structure used to perform tricks, approximately semicircular in cross-section, resembling the bottom half of a cylinder laying down.
half-pipe
Long term, after a couple of more years of happy pedestrian peril, Badrutt built a special track for their activities—the world's first natural ice half-pipe track in about 1870. Source: Internet
Half-pipe skiing main Half-pipe skiing takes the well-known halfpipe to the next level. Source: Internet
The most convincing explanation for false-tones is that the horn is acting as a 'third of a pipe' rather than as a half-pipe. Source: Internet