Definition of booster seat noun from the Oxford Advanced Learner's Dictionary


booster seat

BrE BrE//ˈbuːstə siːt//
; NAmE NAmE//ˈbuːstər siːt//
Parts of a car
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a seat that you put on a car seat, or on a chair at a table, so that a small child can sit higher See related entries: Parts of a car
See the Oxford Advanced American Dictionary entry: booster seat