{ Phar`ma*ceu"tic (fär`m&adot;*sū"t&ibreve;k), Phar`ma*ceu"tic*al (-t&ibreve;*kal), } a. [L. pharmaceuticus, Gr. farmakeytiko`s, fr. farmakey`ein: cf. F. pharmaceutique. See Pharmacy.] Of or pertaining to the knowledge or art of pharmacy, or to the art of preparing medicines according to the rules or formulas of pharmacy; as, pharmaceutical preparations. -- Phar`ma*ceu"tic*al*ly, adv.

Pharmaceutical chemistry, that department of chemistry which ascertains or regulates the composition of medicinal substances.