Last seen in:
- The Guardian - Quick crossword No 14,459 - Sep 9 2016
- The Times - Concise - Times Concise Jumbo No 628
- Irish Times (Simplex) - Oct 16 2012
- Irish Times (Simplex) - Sep 10 2011
- Irish Times (Simplex) - Feb 21 2011
- The Telegraph - GK CROSSWORD NO: 71 - Mar 1 2010
- Irish Times (Simplex) - Feb 23 2010
- Irish Times (Simplex) - Apr 18 2009
- Irish Times (Simplex) - Jun 2 2007
- Irish Times (Simplex) - Sep 19 2006
Related Clues:
- Metal found in heart of crust
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- An element of air mixed with mud
- Nuclear fuel source
- Slag off gradualism by dangerous element
- Subject of Marie Curie's isolation
- A rum uni turns out an unstable element
- Radioactive fuel
- Radioactive material
- Radioactive metal used as fuel in nuclear reactors
- Stockpile that may be subject to inspection
- Element named, in 1789, after a recently discovered planet
- Element discovered by Marie and Pierre Curie