Last seen in:
- Thomas Joseph - King Feature Syndicate - Jul 27 2024
- Universal - Dec 16 2023
- L.A. Times Daily - Oct 8 2022
- Family Time - Nov 17 2019
- Thomas Joseph - King Feature Syndicate - Aug 6 2019
- Universal - Feb 25 2018
- USA Today - Feb 9 2016
- Thomas Joseph - King Feature Syndicate - Oct 26 2015
- Family Time - Oct 25 2015
- Family Time - Oct 5 2015
Related Clues:
- Most-produced organic compound
- Odorless fuel gas
- Heaviest noble gas
- Flashbulb element
- It's 54, periodically speaking
- Refrigerant ingredient
- Air element
- Gas in bulbs
- Dangerous seepage
- Rare gas
- Element whose name roughly means 'lazy'
- It's under krypton on the periodic table
- Fluorescent bulb gas
- Arc-lamp gas
- Poisonous gas