nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- A car seat for a small child that lifts the child by several inches, designed for use with an adult seat belt.
- A seat placed on top of the seat of a chair, used to elevate a small child at a table.