characteristic curve vs characterisic function

characteristic curve and characterisic function both are nouns.

Word	Noun	Adjective	Verb	Adverb
characteristic curve	Yes	No	No	No
characterisic function	Yes	No	No	No

As nouns, characteristic curve and characterisic function are synonyms defined as:

characteristic curve and characterisic function: (electronics) graph showing how a particular characteristic of a device varies with other parameters

characteristic curve (noun)	characterisic function (noun)
(electronics) graph showing how a particular characteristic of a device varies with other parameters	(electronics) graph showing how a particular characteristic of a device varies with other parameters