as·trol·o·gy | \ə-ˈsträ-lə-jē \

Definition of astrology 

1 archaic : astronomy

2 : the divination of the supposed influences of the stars and planets on human affairs and terrestrial events by their positions and aspects

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Other Words from astrology

astrological \ˌas-trə-ˈlä-ji-kəl \ adjective
astrologically \-k(ə-)lē \ adverb

The Difference Between Astronomy and Astrology

Some may find it easy to confuse astronomy and astrology. At one time, these two words actually were synonymous (that is, astronomy once meant what astrology means today), but they have since moved apart from each other. In current use, astronomy is concerned with “the study of objects and matter outside the earth's atmosphere,” while astrology is the purported divination of how stars and planets influence our lives. Put bluntly, astronomy is a science, and astrology is not.

Examples of astrology in a Sentence

Recent Examples on the Web

So Many People Care What’s the difference between astrology and astronomy? Olivia B. Waxman, Time, "Where Do Zodiac Signs Come From? Here's the True History Behind Your Horoscope," 21 June 2018 After all, a 2014 National Science Foundation poll found more than half of millennials think astrology is a science. Olivia B. Waxman, Time, "Where Do Zodiac Signs Come From? Here's the True History Behind Your Horoscope," 21 June 2018 The number eight, with its symmetrical shape, represents prosperity, never ending flow and ideal balance, according to Chinese astrology. Janet Eastman,, "$4 million feng shui mansion designed to maximize good fortune (photos)," 6 Mar. 2018 In astrology, eclipses are important celestial messengers. Jodie Layne, Teen Vogue, "Lunar Eclipse 2018: What You Need to Know," 3 July 2018 Nevertheless, young people are the most likely to view astrology as scientific, in some way. Rachel Raczka,, "What’s your sign? Millennials want to know," 27 Apr. 2018 Governed by the forbidding Big Mother (Susanne Sachsße), the group consists of four middle-aged leaders and eight young recruits, the older women training the younger ones in subjects that range from physical fitness to history to astrology. Ben Sachs, Chicago Reader, "Lesbian revolutionaries smash sexual taboos to undermine the patriarchy in Bruce LaBruce's The Misandrists," 6 July 2018 Most young people don’t use astrology the way older generations did. Rachel Raczka,, "What’s your sign? Millennials want to know," 27 Apr. 2018 In ancient astrology, Virgo is symbolized by the goddess of wheat and agriculture, demonstrating Virgo's deep connection to the physical plane. Aliza Kelly Faragher, Allure, "What Your Sign's July 2018 Horoscope Predictions Mean for You," 29 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'astrology.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of astrology

14th century, in the meaning defined at sense 1

History and Etymology for astrology

Middle English astrologie, from Middle French, from Latin astrologia, from Greek, from astr- + -logia -logy

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Statistics for astrology

Last Updated

24 Sep 2018

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Time Traveler for astrology

The first known use of astrology was in the 14th century

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More Definitions for astrology



English Language Learners Definition of astrology

: the study of how the positions of the stars and movements of the planets have a supposed influence on events and on the lives and behavior of people


as·trol·o·gy | \ə-ˈsträ-lə-jē \

Kids Definition of astrology

: the study of the supposed influences of the stars and planets on people's lives and behavior

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More from Merriam-Webster on astrology

Spanish Central: Translation of astrology

Nglish: Translation of astrology for Spanish Speakers

Britannica English: Translation of astrology for Arabic Speakers Encyclopedia article about astrology

Comments on astrology

What made you want to look up astrology? Please tell us where you read or heard it (including the quote, if possible).


to reject or criticize sharply

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