Mathematics. the identity element of a group in which the operation is addition. (of a function, especially of a function of a complex variable) a point at which a given function, usually a function of a complex variable, has the value zero; a root.
Mucosa buccalis. The inner lining of the cheeks and lips, which is an anatomic region that includes all the mucous membrane lining of the inner surface of the cheeks and lips, from the line of contact of the opposing lips to the line of attachment of mucosa to the alveolar ridges and pterygomandibular raphe, which occupies an area of 50â60 cm2.
Meaning: Of or involving the mouth or mouth region or the surface on which the mouth is located. Context examples: the oral cavity / the oral mucous membrane / the oral surface of a starfish. Similar: buccal (toward the inside of the cheek) buccal (lying within the mouth) Domain category: