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.
Mucus is a noun which means an oily material produced in the mucous membrane by the cells. Mucous membrane is characterized by smooth, skin-like linings that serve as a protection of the different organs in our body.Mucin is the main component of mucus, it is a compound of carbohydrate plus protein.hese two words obviously have one letter that makes them different; mucous is spelled with an âoâ. SUMMARY: 1.Mucus is a noun while mucous is an adjective. 2.Mucus pertains to the oily substance produced by cells while mucous means containing or covered with mucus.