aperiodic

[ey-peer-ee-od-ik]

a·pe·ri·od·ic

[ey-peer-ee-od-ik]
adjective
1.
not periodic; irregular.
2.
Physics. of or pertaining to vibrations or oscillations with no apparent period.

Origin:
1875–80; a-6 + periodic

a·pe·ri·od·i·cal·ly, adverb
a·pe·ri·o·dic·i·ty [ey-peer-ee-uh-dis-i-tee] , noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Aperiodic is always a great word to know.
So is energy level. Does it mean:
a quantized state in which matter may exist, having constant energy and separated from others in the series by finite quantities of energy
the time required for one half the atoms of a given amount of a radioactive substance to disintegrate
Collins
World English Dictionary
aperiodic (ˌeɪpɪərɪˈɒdɪk)
 
adj
1.  not periodic; not occurring at regular intervals
2.  physics
 a.  (of a system or instrument) being damped sufficiently to reach equilibrium without oscillation
 b.  (of an oscillation or vibration) not having a regular period
 c.  (of an electrical circuit) not having a measurable resonant frequency
 
aperi'odically
 
adv
 
aperiodicity
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

aperiodic a·pe·ri·od·ic (ā'pēr-ē-ŏd'ĭk)
adj.
Not occurring periodically.


a'pe·ri·od'i·cal·ly adv.
a·pe'ri·o·dic'i·ty (-ə-dĭs'ĭ-tē) n.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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