Help Wordnik hunt for a million missing words by backing our Kickstarter!


from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The energy characteristic of a stationary state of a physical system, especially a quantum mechanical system.
  • n. The stationary state of a quantum mechanical system.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. any of the discrete stable energies that a quantum mechanical system (such as the electrons of an atom) can have

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a definite stable energy that a physical system can have; used especially of the state of electrons in atoms or molecules


Sorry, no etymologies found.


Sorry, no example sentences found.


Log in or sign up to get involved in the conversation. It's quick and easy.