a. Obs. [f. ADEPT-IST, after analogy of chemist chemical, botanist botanical.] Of or pertaining to an Adeptist; alchemical.

1

1662.  J. Chandler, Helmont’s Oriatrike, 157. They who study in Adepticall things, do strive to promote their labour of wisdom by the objects of sight. Ibid., 7. Medicine Adeptical.

2

1801.  Barrett, Magus, 26. According to the Adeptical philosophy.

3