Answer: NOBLEGASES

Noble gases refer to a group of chemical elements in the periodic table. These elements are characterized by their stable and unreactive nature due to having a full electron shell. The three examples you mentioned, neon, argon, and krypton, are indeed noble gases. They are often used in various applications such as lighting (neon signs), insulation, and in industry.

Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Neon, argon and krypton. Explanations are generated by AI and may be inaccurate.