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Synonyms

earth science

American  

noun

  1. any of various sciences, as geography, geology, or meteorology, that deal with the earth, its composition, or any of its changing aspects.

earth science British  

noun

  1. any of various sciences, such as geology, geography, and geomorphology, that are concerned with the structure, age, and other aspects of the earth

"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
earth science Scientific  

  1. Any of several sciences, such as geology, oceanography, and meteorology, that study the origin, composition, and physical features of the Earth.

Other Word Forms

Etymology

Origin of earth science

First recorded in 1935–40

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.

To better understand how planets form and evolve, researchers from astronomy, planetary science, and Earth science are increasingly working together.

From Science Daily • Apr. 21, 2026

Gregory Beroza, a co-author and professor of Earth science at Stanford’s Doerr School of Sustainability, said the approach is a big leap for groundwater management.

From Los Angeles Times • Feb. 13, 2025

“Pace will give us another dimension” to what other satellites observe, said NASA’s director of Earth science, Karen St. Germain.

From Seattle Times • Feb. 7, 2024

Earth science efforts would grow 12%, to $2.2 billion.

From Science Magazine • Oct. 18, 2021

Each true-or-false question taught the user—and the alien—basic Earth science facts.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.