Meaning of energy level

en'ergy lev"el

Pronunciation: [key]
  1. a comparative level of capacity for vigorous activity: The child has a high energy level.
  2. Also calledone of a quantized series of states in which matter may exist, each having constant energy and separated from others in the series by finite quantities of energy.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.