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.
The definition of a function occurs in languages such as Pascal, JavaScript, and C, while a method is defined in object-oriented languages, with the most common being Java and C#. Functions are called independently while an instance or object is used to call methods.