| Answer | Crossword Clue |
|---|---|
| nomenclature | the study of the application of the names of taxa |
| nomenclatures | NOMENCLATURE, the study of the application of the names of taxa |
| photonics | the study of the application of photons eg in communications technology |
| cliometrical | relating to cliometrics, the application of methods developed in other fields (as economics, statistics, and data processing) to the study of history also CLIOMETRIC |
| cliometric | relating to cliometrics, the application of methods developed in other fields (as economics, statistics, and data processing) to the study of history also CLIOMETRICAL |
| onomastic | Of or relating to the study of the history and origin of proper names |
