noun. hedge or fence of trees designed to lessen the force of the wind and reduce erosion.
1. Noun, singular or mass Australian hybrid willow's fast growth rate makes it a theoretical excellent choice to create a windbreak or shelterbelt in open landscapes as well as erosion control or noise and dust abatement. 2. Verb, past tense Blue Arctic willow provides gardeners an excellent option for a windbreak, shelterbelt or screen in cold winter or windy regions.