Cite
 

Meaning of motocross

mo•to•cross

Pronunciation: (mō'tō-krôs", -kros"), [key]
— n.
  1. a timed motorcycle race over a closed course consisting of a winding dirt trail with hills, jumps, sharp turns, and often muddy terrain.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.