from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A principle stating that the total energy of an isolated system remains constant regardless of changes within the system.
from the GNU version of the Collaborative International Dictionary of English
- n. the principle that the total energy of any material system is a quantity which can neither be increased nor diminished by any action between the parts of the system, though it may be transformed into any of the forms of which energy is susceptible.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes
Sorry, no etymologies found.