[mo.to.cross] n [F, fr. moto motorcycle (short for motocyclette) + cross-country, fr. E] (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
MOTOCROSS
Meaning of MOTOCROSS in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012