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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

  • earth scientist noun

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 tackle these questions, researchers combined expertise from multiple fields, including genetics, archaeology, earth science, and oceanography.

From Science Daily • Apr. 9, 2026

If Isaacman behaves similarly to Bridenstine in defending earth science, he “will have my full support,” Abdalati says.

From Science Magazine • Dec. 4, 2024

Luisa did not have the Highers needed to study earth science so went to college to do an HNC which helped her to get into university.

From BBC • Aug. 18, 2024

His latest book, complete with helpful, dizzying and sobering diagrams and photographs, could easily serve as the text for a college earth science course.

From Los Angeles Times • Jul. 19, 2024

The "Ask a Scientist" category lets you ask questions of scientists in fields from biology to earth science.

From Big Dummy's Guide to the Internet by Electronic Frontier Foundation

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.