Jargon is a noun and is described by Webster's Dictionary as:
1. The language, especially the vocabulary, peculiar to a particular trade, profession, or group: medical jargon.
2. Unintelligible or meaningless talk or writing; gibberish.
3. Any talk or writing that one does not understand.
4. Pidgin.
5. Language that is characterized by uncommon or pretentious vocabulary and convoluted syntax and is often vague in meaning.