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[uh-strol-uh-jee] /əˈstrɒl ə dʒi/
the study that assumes and attempts to interpret the influence of the heavenly bodies on human affairs.
Obsolete. the science of astronomy.
Origin of astrology
1325-75; Middle English < Latin astrologia < Greek. See astro-, -logy
Related forms
astrologer, astrologist, noun
[a-struh-loj-i-kuh l] /ˌæ strəˈlɒdʒ ɪ kəl/ (Show IPA),
astrologic, astrologous
[uh-strol-uh-guh s] /əˈstrɒl ə gəs/ (Show IPA),
astrologically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for astrology


the study of the motions and relative positions of the planets, sun, and moon, interpreted in terms of human characteristics and activities
the primitive study of celestial bodies, which formed the basis of astronomy
Derived Forms
astrologer, astrologist, noun
astrological (ˌæstrəˈlɒdʒɪkəl) adjective
astrologically, adverb
Word Origin
C14: from Old French astrologie, from Latin astrologia, from Greek, from astrologos (originally: astronomer); see astro-, -logy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Contemporary definitions for astrology
noun's 21st Century Lexicon
Copyright © 2003-2014, LLC
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Word Origin and History for astrology

late 14c., from Latin astrologia "astronomy, the science of the heavenly bodies," from Greek astrologia "telling of the stars," from astron "star" (see astro-) + -logia "treating of" (see -logy).

Originally identical with astronomy, it had also a special sense of "practical astronomy, astronomy applied to prediction of events." This was divided into natural astrology "the calculation and foretelling of natural phenomenon" (tides, eclipses, etc.), and judicial astrology "the art of judging occult influences of stars on human affairs" (also known as astromancy, 1650s). Differentiation between astrology and astronomy began late 1400s and by 17c. this word was limited to "reading influences of the stars and their effects on human destiny."

Online Etymology Dictionary, © 2010 Douglas Harper
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astrology in Culture

astrology definition

A study of the positions and relationships of the sun, moon, stars, and planets in order to judge their influence on human actions. Astrology, unlike astronomy, is not a scientific study and has been much criticized by scientists. (See zodiac.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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