monoski

1. A variant of a downhill skiing/alpine skiing ski, that is very wide, allowing for both right and left ski boots to the attached to the same ski, with a doubled-up set of bindings, placed side-by-side. It has the appearance of an extremely wide ski or narrow alpine snowboard, though with binding mounting locations similar to that of a regular ski.
2. A type of sitski with a single ski, used by wheelchair-bound skiers in downhill skiing and para-alpine. It is paired with outriggers, ski poles that have skis attached to the bottom, instead of the pick/spike, to function as outrigger runners for the skier sitting in the monoski.

verb

To use a monoski; to participate in monoskiing.