Definition of mountainboard in English:
 mountainboard
nounˈmaʊnt(ə)nbɔːdˈmaʊnt(ə)nˌbɔrd
trademark A board resembling a skateboard with four wheels, used for riding down hills and mountainsides.
 Example sentencesExamples
-  Once mountainboards had been invented, landboarding - strapping onto the board and hurtling along the beach at speeds of up to 30 mph, holding on to a 40 ft power kite - was simply the ridiculous next step.
 
verbˈmaʊnt(ə)nbɔːdˈmaʊnt(ə)nˌbɔrd
[no object]often as noun mountainboardingRide on a mountainboard.
 mountainboarding came about when a few frustrated skaters wanted to tackle some more adventurous terrain
 over 100,000 kids mountainboarded at camps last summer
 Example sentencesExamples
-  He learnt to mountainboard with an adventure company.
 -  Over 100,000 kids mountainboarded at camps last summer.
 -  Or try mountainboarding, which combines elements of skateboarding and snowboarding, in an individual or small-group setting.
 -  The big question: does mountainboarding actually live up to the hype?
 
  Definition of mountainboard in US English:
 mountainboard
nounˈmount(ə)nˌbôrdˈmaʊnt(ə)nˌbɔrd
trademark A board resembling a skateboard with four wheels, used for riding down hills and mountainsides.
 Example sentencesExamples
-  Once mountainboards had been invented, landboarding - strapping onto the board and hurtling along the beach at speeds of up to 30 mph, holding on to a 40 ft power kite - was simply the ridiculous next step.
 
verbˈmount(ə)nˌbôrdˈmaʊnt(ə)nˌbɔrd
[no object]often as noun mountainboardingRide on a mountainboard.
 mountainboarding came about when a few frustrated skaters wanted to tackle some more adventurous terrain
 over 100,000 kids mountainboarded at camps last summer
 Example sentencesExamples
-  Or try mountainboarding, which combines elements of skateboarding and snowboarding, in an individual or small-group setting.
 -  Over 100,000 kids mountainboarded at camps last summer.
 -  The big question: does mountainboarding actually live up to the hype?
 -  He learnt to mountainboard with an adventure company.