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1. Dictionary

   planet

   /ˈplanɪt/

   noun

   • 1. a celestial body moving in an elliptical orbit round a star.
   • ▪ the earth: "no generation has the right to pollute the planet"
   • ▪ a celestial body distinguished from the fixed stars by having an apparent motion of its own (including the moon and sun), especially with reference to its supposed influence on people and events: "the planets are presently influencing you in a positive way"

   Word Origin Middle English: from Old French planete, from late Latin planeta, planetes, from Greek planētēs ‘wanderer, planet’, from planan ‘wander’.

   Scrabble Points: 8

   • P

     3

   • L

     1

   • A

     1

   • N

     1

   • E

     1

   • T

     1

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   More definitions, origin and scrabble points

2. science.nasa.gov › solar-system › planetsWhat is a Planet? - NASA Science

   science.nasa.gov › solar-system › planets

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   Learn how the definition of a planet has evolved over time and why it is controversial. Find out the criteria set by the International Astronomical Union and the challenges to their classification scheme.

3. spaceplace.nasa.gov › planet-what-is › enWhat Is a Planet? | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov › planet-what-is › en

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   Jun 27, 2019 · Learn how scientists define a planet based on three criteria: orbiting a star, being spherical, and clearing its orbit. Explore the formation of planets in our solar system and beyond, and the debate over brown dwarfs and exoplanets.

4. Videos

   • 2:02

     space.com

     What Is a Planet?

     6 Apr 2018

   • science.nasa.gov

     What is a Planet? - NASA Science

     29 Sep 2023

   • 4:55

     youtube.com

     Planets: What Exactly is a Planet? | Science Trek

     19 Oct 2020

     7.5K views

   View all

5. en.wikipedia.org › wiki › PlanetPlanet - Wikipedia

   en.wikipedia.org › wiki › Planet

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   A planet is a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself. [1] .

6. www.britannica.com › science › planetPlanet | Definition, Characteristics, & Facts | Britannica

   www.britannica.com › science › planet

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   4 days ago · A planet is a large natural body that orbits a star and is not a star itself. Learn about the eight planets of the solar system, the dwarf planets, and the history and debate of planetary classification.

7. dictionary.cambridge.org › dictionary › englishPLANET | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   A planet is a large, round object that moves around the sun or another star. Learn more about the different types of planets, their features, and how to use the word in sentences.

8. www.merriam-webster.com › dictionary › planetPlanet Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › planet

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   Learn the origin, synonyms, examples, and history of the word planet, which means any of the large bodies that revolve around the sun in the solar system. Find out how the definition of planet changed over time and what are the phrases containing planet.

9. solarsystem.nasa.gov › planets › in-depthWhat is a Planet? | Planets – NASA Solar System Exploration

   solarsystem.nasa.gov › planets › in-depth

   • Cached

   Learn how the definition of a planet has evolved over time and why it is controversial. Find out the criteria set by the International Astronomical Union and the challenges to their classification scheme.