0 a seat for a young child, used in a car, at a table, etc. that raises him or her to a higher level -- （通常用于汽车内的）幼儿增高座位
She was the primary sponsor of legislation (now law) that requires young children to be properly restrained in a booster seat to prevent fatal injuries.
Many convertible seats will transition from a rear-facing seat, to a forward-facing seat, and some then can be used as a booster seat.
He begins to annoy his friends with the doll, mainly having a booster seat for the doll at a restaurant.
From the ages of eight to twelve, children may have outgrown their booster seats and can be permitted to use regular adult seat restraints.
Booster seats can not be used on airplanes because they don't have shoulder belts.
Theaters often have booster seats for children and other short people to put on the seat, to sit higher, for a better view.
The purpose was to act as booster seats to bring the child to a height easier for the driving parent to see them.
Booster seats lift the child and allow the seat belt to sit firmly across the collar bone and chest, with the lap portion fitted to the hips.
