From Longman Dictionary of Contemporary Englishtravel sicknessˈtravel ˌsickness noun [uncountable] MIwhen you feel ill because you are travelling in a vehicle —travel-sick adjective
Examples from the Corpus
travel sickness• Scopolamine is used for travel sickness.• Recovery from the effects of travel sickness is very rapid.• Travel Bands wrist bands to prevent travel sickness, £6.50. 