from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of a set of real numbers assigned to a physical system that individually characterize the properties and collectively specify the state of a particle or of the system.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One of certain integers or half-integers that specify the state of a quantum mechanical system (such as an electron in an atom).
Sorry, no etymologies found.