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cresta run

British  
/ ˈkrɛstə /

noun

    1. an activity involving travelling at high speed in a toboggan down a steep narrow passage of compacted snow and ice

    2. the passage itself

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012