n.
（小孩吃饭时坐的）高脚椅子

highchair \high"chair`\, high chair \high" chair`\n.
a chair designed for feeding a very young child, having four
long legs and a footrest and a detachable tray, which rests
in front of the child, holds the food, and also serves as a
restraint, to keep the child from falling out of the chair.

Syn: feeding chair.
[WordNet 1.5]