frequency-response characteristic vs frequency-response curve

frequency-response characteristic and frequency-response curve both are nouns.

Word	Noun	Adjective	Verb	Adverb
frequency-response characteristic	Yes	No	No	No
frequency-response curve	Yes	No	No	No

As nouns, frequency-response characteristic and frequency-response curve are synonyms defined as:

frequency-response characteristic and frequency-response curve: (electronics) a graph of frequency response with signal amplitude or gain plotted against frequency

frequency-response characteristic (noun)	frequency-response curve (noun)
(electronics) a graph of frequency response with signal amplitude or gain plotted against frequency	(electronics) a graph of frequency response with signal amplitude or gain plotted against frequency