Wiktionary
n. A winter sport in which skiers ski down a take-off ramp and attempt to jump as far as possible.
WordNet
n. the act of performing a jump of skis from a high ramp overhanging a snow covered slope
Wikipedia
Ski jumping is a form of Nordic skiing in which athletes descend a specially constructed takeoff ramp (known as the inrun), jump from the end of it (the table) with as much power as they can generate, and "fly" as far as possible down a steeply sloped hill. Points are awarded for distance and style by five judges, with competition sanctioned by the International Ski Federation (FIS). To enable the athletes (who are known as ski jumpers) to effectively glide such long distances and land safely, the skis they use are considerably wider and longer than their cross-country and alpine skiing counterparts. Ski jumping is predominantly a winter sport and has been part of the Winter Olympic Games since its inception in 1924, but it can also be performed in the summer on artificial surfaces made from plastic. Along with cross-country skiing, ski jumping is one of two sports which form the Nordic combined discipline.
Usage examples of "ski jumping".
Everything was laid on -ski instructors, skating instructors, transport to the main runs, ice hockey matches, ski jumping.
Mary's comment had been that Erik Haakansson Hand would have looked right at home on a ski jumping team at the winter Olympics.
Veronica had no idea what either ski jumping or the winter Olympics might be, but she did get the general idea that Mary, also, thought that Hand merited compliments on his appearance.