shelterbelt
- n hedge or fence of trees designed to lessen the force of the wind and reduce erosion
- To the Senate, Secretary Wallace made a long defense of the shelterbelt program, and the Senate finally put back the $1,000,000 appropriation.
- Among other things, they helped plant more than 200 million trees to reforest 17 million acres in a "shelterbelt" that spanned the Middle West.