booster seat

noun

: a portable seat that is placed on or attached to a chair or an automobile seat in order to raise a child to a higher position

… they should use a booster seat until they are 8 years old or at least 4 feet, 9 inches tall. Only after that can they ride in the front seat, and even then the back is always safer.

—Denise Milosevich

She's too big for a high chair, but needs to sit on her knees to keep her head fully above the dining room table. And she doesn't want a booster seat. She'll boost herself, thank you very much.

—Dave Manley

called also booster chair

Examples of booster seat in a Sentence

Recent Examples on the Web

State law now more clearly specifies age groups for forward- or rear-facing car seats, booster seats and belts. —Alex Derosier, Twin Cities, 1 Aug. 2024

Maricela grabbed the booster seat and followed as Ariel started crossing the road. —Melissa Sanchez, ProPublica, 24 Oct. 2024

Bring your own booster seat: Consider portable high chair options like the Inglesina Fast Table Chair or other chairs that properly snap and buckle onto restaurant chairs. —Kristina Behr, Parents, 11 Oct. 2024

Even some children older than ten years old may benefit from using a booster seat, researchers said. —Tanya Mohn, Forbes, 29 Sep. 2024

Word History

First Known Use

1954, in the meaning defined above