Related Clues:
- Gas in incandescent lamps, perhaps
- Bulb gas
- Most common of the noble gases
- Electric-bulb gas
- Tile installer
- Light-bulb element
- Helium group gas
- Onion feature
- Gas used in incandescent lamps
- Brickworker or hen, at times
- Composition of some plasmas
- Cake tier
- Gas used in lasers
- Element #18
- Most common inert gas in the atmosphere