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.
Discrete Function vs Continuous Function. Functions are one of the most important classes of mathematical objects, which are extensively used in almost all sub fields of mathematics. As their names suggest both discrete functions and continuous functions are two special types of functions. A function is a relation between two sets defined in such a way that for each element in the first set, the value that corresponds to it in the second set is unique.