The sport of gliding downhill over snow on a short sled, especially one with a large groove down the center of the bottom that allows enhanced control for a rider who is kneeling with the calves strapped in.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.