From Longman Dictionary of Contemporary Englishstation wagonˈstation ˌwagon noun [countable] American EnglishTTC a large car with extra space at the back, with a door there for loading and unloading SYN estate car British English
Examples from the Corpus
station wagon• Some children pass by, staring out of the back of a station wagon moodily.• The force materialized then, several trucks and a crowded station wagon, about a hundred and fifty ragged recruits.• On the opposite corner a dusty station wagon idled noisily at the red light.• The rotted-out Ford station wagon has been replaced.• To avoid any risk of being noticed he drove his wife's Volvo station wagon. 