exponential function vs mapping

exponential function and mapping both are nouns.

Word	Noun	Adjective	Verb	Adverb
exponential function	Yes	No	No	No
mapping	Yes	No	No	No

As nouns, mapping is a hypernym of exponential function; that is, mapping is a word with a broader meaning than exponential function:

exponential function: a function in which an independent variable appears as an exponent
mapping: (mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)

Other hypernyms of exponential function include function, map, mathematical function, single-valued function.

exponential function (noun)	mapping (noun)
a function in which an independent variable appears as an exponent	(genetics) the process of locating genes on a chromosome
	the process of making maps
	(mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)