n.
Pronunciation: ' m ō -t ō - ˌ kro ̇ s
Function: noun
Etymology: French, from moto motorcycle (short for motocyclette ) + cross -country, from E
Date: 1951
: a closed-course motorcycle race over natural or simulated rough terrain (as with steep inclines, hairpin turns, and mud) also : the sport of engaging in motocross races