(intransitive) To study or practise astrology; to attempt to foretell the future using astrology. / To attempt to foretell the future of (someone) using astrology, to read or cast (someone's) horoscope.

(astrology) Any of twelve signs, corresponding to constellations, that are used as the basis of astrology

plural of astrological sign

The astrology system which is derived from the Hellenistic astrology and is based on the relative positions of, particularly, the twelve zodiacal constellations on the moment of a person's birth.

The astrology system which was developed in China and is based on yin and yang, twelve signs represented by animals, the lunisolar calendar and five planets.

(astrology) A form of astrology that measures the position of the sun relative to the stars. This compensates for the precession of Earth's axis, which causes the zodiac signs to move around the sky relative to the vernal equinox.

(astrology) A form of astrology that measures the position of the sun relative to the vernal equinox. This does not compensate for the precession of Earth's axis, so that the zodiac signs move around the sky relative to the vernal equinox by about one sign every 2150 years.

(historical) The supposed divination of human affairs based on the motions of the stars and planets (as opposed to natural astrology).

(now historical) Judicial astrology.