excited state

excited state

noun Physics.
any of the energy levels of a physical system, especially an atom, molecule, etc., that has higher energy than the lowest energy level.

Origin:
1925–30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Excited state is always a great word to know.
So is transverse wave. Does it mean:
the reciprocal of the bulk modulus, equal to the ratio of the fractional change in volume to the stress applied to a body
a wave in which the direction of displacement is perpendicular to the direction of propagation, as a surface wave of water
Dictionary.com's 21st Century Lexicon
Main Entry:  excited state
Part of Speech:  n
Definition:  a condition of a physical system, esp. an atom, molecule, etc., in which it has higher energy than the lowest possible energy level; the condition of an atom or molecule after absorbing energy
Example:  Excited states tend to be short-lived as they lose energy through collisions or emissions and relax back to ground state.
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American Heritage
Medical Dictionary

excited state ex·cit·ed state (ĭk-sī'tĭd)
n.
The condition of an atom or molecule after absorbing energy from exposure to light, electricity, elevated temperature, or a chemical reaction, and which may be a necessary prelude to a chemical reaction or to the emission of light.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
excited state   (ĭk-sī'tĭd)  Pronunciation Key 
A state of a physical system in which the system has more than the minimum possible potential energy. Excited states tend to be unstable and easily or spontaneously revert to lower energy states, giving off energy. Compare ground state.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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