natural language processing application vs natural language processor

natural language processing application and natural language processor both are nouns.

Word	Noun	Adjective	Verb	Adverb
natural language processing application	Yes	No	No	No
natural language processor	Yes	No	No	No

As nouns, natural language processing application and natural language processor are synonyms defined as:

natural language processing application and natural language processor: an application program that deals with natural language text

natural language processing application (noun)	natural language processor (noun)
an application program that deals with natural language text	an application program that deals with natural language text