A child who has outgrown the internal harness or height limitations of a forward-facing child safety seat. Within the range of 40 to 80 pounds but under 4â9â. Within 4 to 8 years of age and is at least 35â tall.
tread. v. trod (trÅd) or treaded, trodÂ·den (trÅdâ²n) or trod or treaded, treadÂ·ing, treads. v. tr. 1. To walk on, over, or along: tread the pavement.
Definition of skid. 1  1 : one of a group of objects (as planks or logs) used to support or elevate a structure or object. 2  2 : a wooden fender hung over a ship's side to protect it in handling cargo. 3  3 : a usually iron shoe or clog attached to a chain and placed under a wheel to prevent its turning when descending a steep hill : drag.