- any of various sciences, as geography, geology, or meteorology, that deal with the earth, its composition, or any of its changing aspects.
Origin of earth science
First recorded in 1935–40
Also called geoscience.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for earth science
The science of the lower heavens is a factor of earth-science in the definition we are just about to give.
They have found some recognition, though much too meager, in the more comprehensive and philosophical treatises on earth-science.
- 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
- Any of several sciences, such as geology, oceanography, and meteorology, that study the origin, composition, and physical features of the Earth.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.