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natural science

a science or knowledge of objects or processes observable in nature, as biology or physics, as distinguished from the abstract or theoretical sciences, as mathematics or philosophy.
Origin of natural science
Middle English word dating back to 1350-1400 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for natural science

natural science

the sciences collectively that are involved in the study of the physical world and its phenomena, including biology, physics, chemistry, and geology, but excluding social sciences, abstract or theoretical sciences, such as mathematics, and applied sciences
any one of these sciences
Derived Forms
natural scientist, noun
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
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natural science in Science
natural science  
A science, such as biology, chemistry, or physics, that deals with the objects, phenomena, or laws of nature and the physical world.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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