| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | deuterium | science community | An isotope of hydrogen with one proton and one neutron, commonly used in nuclear fusion research | 1 |
| 2 | deuterium | science community | Deuterium is an important isotope used in nuclear fusion research and as a fuel in experimental fusion reactors. | 1 |
| 3 | deuteron | science | A deuteron is a stable nuclear particle composed of one proton and one neutron, and is important in nuclear physics research. | 1 |