| Answer | Crossword Clue |
|---|---|
| isotopically | ISOTOPIC, pertaining to an isotope (a form of an element) |
| isotopic | pertaining to an isotope (a form of an element) |
| ergative | pertaining to a type of language that has an ergative case or in which the direct object of a transitive verb has the same form as the subject of an intransitive verb |
| indexical | of, pertaining to, or like, an index / something with the form of an index |
| isotopes | ISOTOPE, a form of an element |
