A colorless (or pale yellow or smoky) variety of zircon
Else clues• In talk
• Academese, e.g.
• Cant
• Computerese, e.g.
• Computerese, for example
• Dialect
• It's hard for laymen to understand
• Lingo
• Shop talk
• Slang
• Special language
• Special lingo
• Specialized vocabulary
• Tech talk, e.g.
• Vernacular
• A characteristic language of a particular group (as among thieves)
• Specialized technical terminology characteristic of a particular subject