all-terrain board
noun/ˌɔːl təˌreɪn ˈbɔːd/
/ˌɔːl təˌreɪn ˈbɔːrd/
(also mountainboard™)
- a short narrow board with wheels like a skateboard that can be used for going down mountains
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all-terrain board
Definition of all-terrain board noun from the Oxford Advanced Learner's Dictionary