1. a fairy-tale heroine who enters the house of the Three Bears and declares the possessions of Baby Bear to be ‘just right’, as compared to those of Father Bear and Mother Bear.
▪ denoting or referring to the most desirable or advantageous part of a range of values or conditions (typically the center):"the planet is in the middle of what astronomers call the Goldilocks zone: a place that's not too hot and not too cold"