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aperiodic

[ey-peer-ee-od-ik] /ˌeɪ pɪər iˈɒd ɪk/
adjective
1.
not periodic; irregular.
2.
Physics. of or pertaining to vibrations or oscillations with no apparent period.
Origin
1875-1880
1875-80; a-6 + periodic
Related forms
aperiodically, adverb
aperiodicity
[ey-peer-ee-uh-dis-i-tee] /eɪˌpɪər i əˈdɪs ɪ ti/ (Show IPA),
noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for aperiodic
  • If he finds signals that are aperiodic, it's a good indication that a word or a sound may have occurred in that frequency.
  • It's the stock in trade of those uncannily regular yet aperiodic alloys known as quasicrystals.
British Dictionary definitions for aperiodic

aperiodic

/ˌeɪpɪərɪˈɒdɪk/
adjective
1.
not periodic; not occurring at regular intervals
2.
(physics)
  1. (of a system or instrument) being damped sufficiently to reach equilibrium without oscillation
  2. (of an oscillation or vibration) not having a regular period
  3. (of an electrical circuit) not having a measurable resonant frequency
Derived Forms
aperiodically, adverb
aperiodicity (ˌeɪpɪərɪəˈdɪsɪtɪ) noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for aperiodic
adj.

1874, from a- (2), privative prefix, + periodic.

Online Etymology Dictionary, © 2010 Douglas Harper
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aperiodic in Medicine

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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Word Value for aperiodic

14
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