The winter sport in which teams of athletes push a streamlined sled down an icy, twisting track and ride in it to the finish line.
From bobsled (the equipment) plus the gerund/present participle suffix -ing, creating a noun that refers to the sport or activity itself.
Bobsledding was invented in the 1880s by Swiss people combining sledding with ice skating techniques, and it became an Olympic sport partly because it seemed thrillingly dangerous in ways that Victorian societies found exciting.
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