The term "labial" refers to anything related to the lips. In anatomy, it describes structures or features associated with the lips, such as the labial frenulum, which is the small fold of tissue that connects the inside of the lip to the gums. In linguistics, "labial" pertains to sounds produced with the lips, like the consonants p, b, and m. In the context of dentistry, labial can describe the surface of a tooth that faces the lips. This is important for dental procedures and hygiene, as it helps identify areas that may require attention. Understanding labial features is essential in both health and language studies.