The term 'lemon peel' refers to the outer layer of a lemon fruit. This layer is also known as the ZEST (4 letters) or RIND (4 letters). The ZEST and RIND are both edible and can be used to add flavor to dishes, drinks, and desserts. The ZEST is the colored part of the peel that contains essential oils, while the RIND is the white pith underneath the ZEST. Both the ZEST and RIND can be used to make lemon-flavored dishes, drinks, and desserts.