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 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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The first known use of alpha wave was in 1936

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Cite this Entry

“Alpha wave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alpha%20wave. Accessed 24 Jun. 2021.

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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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