alpha wave

noun

Definition of alpha wave

: an electrical rhythm of the brain with a frequency of approximately 8 to 13 cycles per second that is often associated with a state of wakeful relaxation

called also alpha, alpha rhythm

Examples of alpha wave in a Sentence

Recent Examples on the Web Two vaccinated parents decreased the risk by an average of 64.9%, although the risk only decreased by 58.1% during the delta wave compared to 71.7% during the alpha wave. Celina Tebor, USA TODAY, 29 Jan. 2022 And though his music was rooted in the physics of sound, variables like the size and shape of the performance space or the alpha wave patterns a performer generates made his pieces sound different from one performance to the next. New York Times, 1 Dec. 2021 The study also found both vaccines were less effective at preventing Covid-19 during the delta wave than during the previous alpha wave of the virus. Jemima Mcevoy, Forbes, 18 Oct. 2021 The team found that the DMT caused a marked drop in alpha waves, a mark of wakefulness, along with a corresponding brief increase in theta brain waves, indicative of a dream state. Jennifer Ouellette, Ars Technica, 19 Nov. 2019 Buddhist monks, meditators, are also great at engaging alpha waves. National Geographic, 12 Feb. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'alpha wave.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of alpha wave

1936, in the meaning defined above

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Time Traveler for alpha wave

Time Traveler

The first known use of alpha wave was in 1936

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Dictionary Entries Near alpha wave

Alpha Virginis

alpha wave

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Cite this Entry

“Alpha wave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alpha%20wave. Accessed 16 Aug. 2022.

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More Definitions for alpha wave

alpha wave

noun

Medical Definition of alpha wave

: an electrical rhythm of the brain with a frequency of 8 to 13 cycles per second that is often associated with a state of wakeful relaxation

called also alpha

More from Merriam-Webster on alpha wave

Britannica.com: Encyclopedia article about alpha wave

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