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| Letters | Answer | Clue | ||
| 99% | 5 | Exact Match! | ||
noun • a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health | ||||
| 27% | 7 | This gas is widely used as a carrier gas in gas chromatography | ||
noun • any of the chemically inert gaseous elements of the helium group in the periodic table | ||||
| 25% | 9 | Harmful gas emitted in coal mining operations | ||
noun • a toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after an explosion of firedamp in a mine | ||||
Harmful Gas
We've checked our database and believe the answer is
RADON which was last seen in the Eugene Sheffer crossword.
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We think the answer to this crossword clue is:
RADON
Updated: September 1, 2025
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Clue Last Found In...
| Source | #Number | Answer |
|---|---|---|
| Eugene Sheffer30 Jun 2025 | Across 32 | |
| Eugene Sheffer18 Jul 2022 | Across 20 | |
| New York Times26 Aug 1998 | Across 58 | |
This clue was last seen in the publications above.
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