| Answer | Crossword Clue |
|---|---|
| GROUNDMASS | Base for natural crystals |
| EULER | Mathematician who introduced the symbol e for the base of natural logarithms |
| alizarin | solid appearing reddish-orange as crystals and brownish-yellow as powder, C14H8O4, one of the earliest known dyes, formerly obtained in its natural state from madder and now derived from anthraquinone: used chiefly in the |
| deserpidine | a synthetic sedative drug of which the natural base is Rauwolfia serpentina |
| deserpidines | DESERPIDINE, a synthetic sedative drug of which the natural base is Rauwolfia serpentina |
