- a removable seat designed to hold a small child safely while riding in an automobile and that usually attaches to a standard seat with hooks or straps.
- a removable cushion or pad for a driver or passenger to sit on while traveling by automobile, to give extra height or comfort.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for car seat
That's the number of hours you're going to sit here on a car-seat, is it?Glory and the Other Girl
Annie Hamilton Donnell
He rested his pad on the car-seat and began to write, but Miss Morgan intruded herself in the first line.The Candidate
Joseph Alexander Altsheler
Then she stepped up to the car-seat, as slowly and deliberately as a sovereign stepping up to her throne.The Prairie Mother
As he began to realize it all and to think how terrible was this loss, he laid his head down on the car-seat before him and cried.A Little Norsk; Or, Ol' Pap's Flaxen
She opened her eyes and turned them languidly as directed, but without raising her head from the back of the car-seat.A Touch Of Sun And Other Stories
Mary Hallock Foote