expression, godan verb (-ru)
prune a tree; trim branches
Literal expression for cutting off branches of a tree, typically for gardening or forestry.
庭師が梅の枝を剪っている。
The gardener is pruning the plum tree branches.
剪定する is a more formal or technical term for pruning, while 枝を剪る is a straightforward, everyday expression.
Compound of 枝 (branch) + を (object marker) + 剪る (to cut, prune). The verb 剪る is a specialized reading of 切る used specifically for pruning plants.