Last seen in:
- The Guardian - Quick crossword No 16,821 - Apr 4 2024
- The Guardian - Quick crossword No 16,702 - Nov 16 2023
- The Guardian - Quick crossword No 15,961 - Jul 3 2021
- Thomas Joseph - King Feature Syndicate - Jul 1 2020
- The Washington Post - Oct 27 2019
- L.A. Times Daily - Oct 27 2019
- L.A. Times Daily - Dec 24 2017
- The Washington Post - Dec 24 2017
- Universal - Jun 26 2016
- The Washington Post - Apr 11 2016
Related Clues:
- Physicist's particle
- Energy source in a small package
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- 'And -- the opposite shore ...'
- Physics particle with no strong force
- Electrified bit
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- Fundamental physics particle
- Uranium unit
- Niels Bohr's concern
- Interest of Fermi
- Bonding candidate
- Nucleus part
- Basic particle
- Quantum theory subject