| Answer | Crossword Clue |
|---|---|
| INSITU | Latin for "where it originally was" |
| INSITU | Where it originally was |
| exapted | feature having a function for which it was not originally adapted or selected |
| exaptive | feature having a function for which it was not originally adapted or selected |
| didymium | A mixture containing the rare earth elements praseodymium and neodymium, used to color glass for optical filters. It was originally regarded as a single element |
| HASSIUM | Element named for the German state where it was discovered |
