| Answer | Crossword Clue |
|---|---|
| taxonomy | the study of scientific classification |
| taxonomies | TAXONOMY, the study of scientific classification |
| phonetics | The study and classification of speech sounds |
| typology | the study of classification according to type |
| typologies | TYPOLOGY, the study of classification according to type |
| petrography | The branch of science concerned with the description and classification of rocks, esp. by microscopic study |
