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Pronunciation varies by accent · noun
(astronomy) The study of planets, planetary systems and the solar system..
Use planetology when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Planetology means (astronomy) The study of planets, planetary systems and the solar system..
Common synonyms include planetary astronomy, planetary science.
The opposite depends on the specific sense.
Use planetology where its definition matches the intended context.
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