Also called skimobile, snowcat. a motor vehicle with a revolving tread in the rear and steerable skis in the front, for traveling over snow.
verb (used without object), snowmobiled, snowmobiling.
to operate or ride in a snowmobile.

1920–25; snow + -mobile

snowmobiler, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
snowmobile (ˈsnəʊməˌbiːl)
a.  a small open motor vehicle for travelling on snow, steered by two skis at the front and driven by a caterpillar track underneath
 b.  Also called: bombardier a larger closed motor vehicle with two skis at the front and a track at each side

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Encyclopedia Britannica


a one- or two-passenger motorized vehicle with one or two skis in front and an engine-driven single or double continuous track to propel it. Snowmobiles almost all follow the basic design of skis, fuel tank, engine, and seating for driver. They are steered by handlebars that control the skis and by shifting the position of the driver. Acceleration and braking are controlled by hand-squeeze throttle and brake controls on the handlebars.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Their approach comes across as pure as the driven snowmobile.
She was relieved, therefore, when a big guy in a down jacket and snowmobile
  boots showed up and took the empty seat next to her.
Our plan was to be put in by helicopter in the saddle along with our snowmobile
  and sled, and then to drive to the top.
She eats moose, she rides a snowmobile, and she supports drilling.
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