'carsick' definitions:

Definition of 'carsick'

(from WordNet)
adjective
Experiencing motion sickness [syn: airsick, air sick, carsick, seasick]

Definition of 'carsick'

From: GCIDE
  • carsick \car"sick`\ (k[aum]r"s[i^]k`), adj. feeling nauseous due to the movement of a car or other land vehicle; -- similar to airsick and seasick. [WordNet 1.5]