aperiodic

[ ey-peer-ee-od-ik ]

/ ˌeɪ pɪər iˈɒd ɪk /

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adjective

not periodic; irregular.

Physics. of or relating to vibrations or oscillations with no apparent period.

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Origin of aperiodic

First recorded in 1875–80; a-⁶ + periodic¹

OTHER WORDS FROM aperiodic

a·pe·ri·od·i·cal·ly, adverba·pe·ri·o·dic·i·ty

[ey-peer-ee-uh-dis-i-tee], /eɪˌpɪər i əˈdɪs ɪ ti/, noun

Words nearby aperiodic

penny for your thoughts, a, A penny saved is a penny earned, Apepi, aperçu, aperient, aperiodic, aperistalsis, apéritif, aperitive, Apert-Crouzon syndrome, apertognathia

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use aperiodic in a sentence

In a new paper published in Developmental Cognitive Neuroscience, Schaworonkow and Voytek found large changes in aperiodic activity during the first seven months of life.
Brain’s ‘Background Noise’ May Hold Clues to Persistent Mysteries|Elizabeth Landau|February 8, 2021|Quanta Magazine
In their paper, Lendner and her co-authors argue that aperiodic signals can serve as a unique signature to measure a person’s state of consciousness.
Brain’s ‘Background Noise’ May Hold Clues to Persistent Mysteries|Elizabeth Landau|February 8, 2021|Quanta Magazine
With Voytek’s software, Lendner and her colleagues found that in the aperiodic noise of test subjects’ EEGs, the high-frequency activity dropped off faster during REM sleep than when they were awake.
Brain’s ‘Background Noise’ May Hold Clues to Persistent Mysteries|Elizabeth Landau|February 8, 2021|Quanta Magazine
Voytek’s code has driven a lot of recent research, but it isn’t the only game in town for aperiodic noise analysis.
Brain’s ‘Background Noise’ May Hold Clues to Persistent Mysteries|Elizabeth Landau|February 8, 2021|Quanta Magazine

This gives neuroscientists a new tool to dissect both the regular waves and the aperiodic activity in order to disentangle their roles in behavior, cognition and disease.
Brain’s ‘Background Noise’ May Hold Clues to Persistent Mysteries|Elizabeth Landau|February 8, 2021|Quanta Magazine

British Dictionary definitions for aperiodic

aperiodic

/ (ˌeɪpɪərɪˈɒdɪk) /

adjective

not periodic; not occurring at regular intervals

physics

(of a system or instrument) being damped sufficiently to reach equilibrium without oscillation
(of an oscillation or vibration) not having a regular period
(of an electrical circuit) not having a measurable resonant frequency

Derived forms of aperiodic

aperiodically, adverbaperiodicity (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

Medical definitions for aperiodic

aperiodic

[ ā′pîr-ē-ŏd′ĭk ]

adj.

Not occurring periodically.

Other words from aperiodic

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