follow Dictionary.com

11 Trending Words of 2014

law of conservation of energy

noun, Physics.

conservation of energy

noun, Physics.
1.
the principle that in a system that does not undergo any force from outside the system, the amount of energy is constant, irrespective of its changes in form.
Also called law of conservation of energy.
Origin
1850-1855
1850-55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for law of conservation energy

conservation of energy

noun
1.
the principle that the total energy of any isolated system is constant and independent of any changes occurring within the system
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
Cite This Source
Word Origin and History for law of conservation energy

conservation of energy

apparently coined in French by Leibnitz in 1692; attested in English from early 18c. as conservatio virum vivarum or partially nativized versions of it. The exact phrase is attested from 1853.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
law of conservation energy in Science
conservation of energy  
A principle stating that the total energy of a closed system remains constant over time, regardless of other possible changes within the system. It is related to the symmetry of time invariance. See also invariance, thermodynamics.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for law of conservation of energy

Few English speakers likely know this word

Word Value for law

6
7
Scrabble Words With Friends