Astrology Definition

ə-strŏlə-jē

noun

The study of the positions and motions of celestial bodies in the belief that they have an influence on the course of natural earthly occurrences and human affairs.

American Heritage

Primitive astronomy.

Webster's New World

Astronomy.

American Heritage

A system of methods, theories, etc. based on the assumption that the positions of the moon, sun, and stars affect human affairs and that one can foretell the future by studying the stars, etc.

Webster's New World

Divination about human affairs or natural phenomena from the relative positions of celestial bodies. [from 14th c.]

Wiktionary

Synonyms:

Synonyms:
star divination
palm-reading
mantology

Origin of Astrology

From Middle French astrologie, and its source, Latin astrologia (“astronomy”), from Ancient Greek ἀστρολογία (astrologia, “telling of the stars”), from ἄστρον (astron, “star, planet, or constellation”) + -λογία (-logia, “treating of”), combination form of -λόγος (-logos, “one who speaks (in a certain manner)”).

From Wiktionary
Middle English astrologie from Old French from Latin astrologia from Greek astrologiā astro- astro- -logiā -logy

From American Heritage Dictionary of the English Language, 5th Edition