Noun. 1. mucosa-mucus-secreting membrane lining all body cavities or passages that communicate with the exterior. mucous membrane. conjunctiva-a transparent lubricating mucous membrane that covers the eyeball and the under surface of the eyelid.oun. 1. mucosa-mucus-secreting membrane lining all body cavities or passages that communicate with the exterior. mucous membrane. conjunctiva-a transparent lubricating mucous membrane that covers the eyeball and the under surface of the eyelid.
Relations vs Functions. In mathematics, relations and functions include the relation between two objects in a certain order. Both are different. Take, for instance, a function. A function is linked with a single quantity. It is also associated with the argument of the function, input, and value of the function, or otherwise known as the input.
Functions and relations are found everywhere in maths. We can define as relation as a set of ordered pair connected together in a well defined manner. On the other hand, a function is a relation which has only one output value of each permitted or allowed input value. There are several different kinds of functions. Polynomial function is one of the important ones. As the name polynomial itself indicates, poly stands for many and nomial suggests terms. Thus, the function which contains many terms is called as a polynomial.