| Similarity | Rank | |
|---|---|---|
| ultra-violet | 0.869 | 23981 |
| uv | 0.819 | 14054 |
| uvb | 0.811 | 33409 |
| uva | 0.804 | 29497 |
| radiation | 0.793 | 4047 |
| infrared | 0.778 | 15105 |
| stratospheric | 0.761 | 25293 |
| ionise | 0.747 | 26893 |
| photodissociation | 0.741 | 94968 |
| fluorescence | 0.734 | 19486 |
| gamma-ray | 0.727 | 42486 |
| gamma | 0.727 | 10543 |
| magnetosphere | 0.725 | 35041 |
| microscopy | 0.725 | 17007 |
| luminosity | 0.725 | 26688 |
| wavelength | 0.724 | 8541 |
| yohkoh | 0.724 | 87506 |
| ionize | 0.721 | 32044 |
| uv-b | 0.720 | 63631 |
| nebulæ | 0.714 | 66546 |
| chlorophyll | 0.714 | 28843 |
| iue | 0.711 | 78584 |
| neodymium | 0.708 | 76300 |
| fluoresce | 0.707 | 65818 |
| iras | 0.706 | 33102 |