Jargon

[jahr-guh n, -gon] /ˈdʒɑr gən, -gɒn/

noun
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.
.
5.
language that is characterized by uncommon or pretentious vocabulary and convoluted syntax and is often vague in meaning.
verb (used without object)
6.
to speak in or write jargon; .
[jahr-gon] /ˈdʒɑr gɒn/
noun
1.
a colorless to smoky gem variety of zircon.
/ˈdʒɑːɡən/
noun
1.
specialized language concerned with a particular subject, culture, or profession
2.
language characterized by pretentious syntax, vocabulary, or meaning
3.
gibberish
4.
another word for pidgin
verb
5.
(intransitive) to use or speak in jargon
/ˈdʒɑːɡɒn/
noun
1.
(mineralogy, rare) a golden yellow, smoky, or colourless variety of zircon
n.

mid-14c., “unintelligible talk, gibberish; chattering, jabbering,” from Old French jargon “a chattering” (of birds), also “language, speech,” especially “idle talk; thieves’ Latin.” Ultimately of echoic origin (cf. Latin garrire “to chatter,” English gargle). Often applied to something the speaker does not understand, hence meaning “mode of speech full of unfamiliar terms” (1650s). Middle English also had it as a verb, jargounen “to chatter” (late 14c.), from French.

A special language belonging exclusively to a group, often a profession. Engineers, lawyers, doctors, tax analysts, and the like all use jargon to exchange complex information efficiently. Jargon is often unintelligible to those outside the group that uses it. For example, here is a passage from a computer manual with the jargon italicized: “The RZ887-x current loop interface allows the computer to use a centronics blocked duplex protocol.” (See slang.)