| Similarity | Rank | |
|---|---|---|
| radiation | 0.861 | 5280 |
| electromagnetic | 0.824 | 16569 |
| ultraviolet | 0.818 | 22360 |
| ionizing | 0.817 | 62668 |
| rays | 0.800 | 8478 |
| ultra-violet | 0.787 | 90146 |
| wavelengths | 0.786 | 27565 |
| irradiation | 0.784 | 41577 |
| electro-magnetic | 0.782 | 90843 |
| photons | 0.768 | 31946 |
| ionosphere | 0.758 | 85878 |
| emitted | 0.748 | 20806 |
| sun's | 0.745 | 20816 |
| ionization | 0.738 | 60226 |
| emanations | 0.735 | 83063 |
| nuclei | 0.725 | 34182 |
| perturbations | 0.724 | 77676 |
| sunlight | 0.721 | 6869 |
| neutrons | 0.719 | 44331 |
| luminescence | 0.713 | 81647 |
| radiative | 0.711 | 79463 |
| microwaves | 0.710 | 41029 |
| UVB | 0.706 | 38533 |
| radiated | 0.705 | 42013 |
| photon | 0.705 | 33504 |