A baby sitting in a highchair.
highchair definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a baby's chair, with long legs and, usually, a tray for food
highchair definition by American Heritage Dictionary
A very young child's feeding chair that has long legs, a footrest, and a usually detachable tray.