Tree Root is the part of the tree that is below the ground. It is the underground part of the tree that anchors it to the ground and absorbs water and minerals from the soil.

Tree roots come in various shapes and sizes depending on the species of the tree. They can be shallow or deep, wide-spreading or short, slender and fibrous or thick and woody. They can be either unbranched or branching.

Tree roots are essential for the health of the tree. They anchor it firmly to the ground, absorb water and minerals from the soil, provide essential nutrients, and store food materials for the tree. In addition, some tree roots have specialized functions such as protection from predators, fixing nitrogen, and providing support to the tree.

Tree roots also play a critical role in the environment. They help stabilize the terrain, prevent soil erosion, and can even help reduce the effects of climate change by trapping carbon dioxide.

In conclusion, the English term for tree root is "tree root". Tree roots are essential for the health of the tree, and they also play a critical role in the environment. Therefore, it is important to take care of tree roots in order to ensure the health and longevity of the tree.