The Collaborative International Dictionary of English v.0.48:
Astrologic \As`tro*log"ic\, Astrological \As`tro*log"ic*al\, a. [Gr. 'astrologiko`s.] Of or pertaining to astrology; professing or practicing astrology. "Astrologic learning." --Hudibras. "Astrological prognostication." --Cudworth. -- As`tro*log"ic*al*ly, adv. [1913 Webster]