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terrestrial planet

American  
[tuh-res-tree-uhl plan-it] / təˈrɛs tri əl ˈplæn ɪt /

noun

Astronomy.
  1. a planet composed mostly of metals or silica rocks: in our solar system, the terrestrial planets are the four inner planets.


terrestrial planet Scientific  

Etymology

Origin of terrestrial planet

First recorded in 1885–90

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

These results suggest that the conditions for terrestrial planet formation can occur in a possible broader range of environments than previously thought.

From Science Daily • Nov. 30, 2023

It is interesting when you think about it that we are the only terrestrial planet with a big moon.

From Salon • Oct. 13, 2019

Anglada-Escudé and his colleagues estimate that Proxima b is at least 1.3 times as big as Earth and is most likely a terrestrial planet, with a surface.

From The New Yorker • Aug. 24, 2016

It is useful to approximate the structure of a terrestrial planet as having two parts: a metal core and a rocky mantle.

From Textbooks • Jan. 1, 2015

Our terrestrial planet is in constant increase by meteoric dust, moving to it through endless time out of infinite space.

From Plato and Platonism by Pater, Walter

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