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, "Ayahuasca alters brain waves to produce waking dream-like state, study finds," 19 Nov. 2019 Buddhist monks, meditators, are also great at engaging alpha waves. National Geographic, "We Are Wired To Be Outside," 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

Keep scrolling for more

Learn More about alpha wave

Time Traveler for alpha wave

Time Traveler

The first known use of alpha wave was in 1936

See more words from the same year

Statistics for alpha wave

Cite this Entry

“Alpha wave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alpha%20wave. Accessed 7 Jul. 2020.

Keep scrolling for more

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

Rhyming Dictionary: Words that rhyme with alpha wave

Britannica.com: Encyclopedia article about alpha wave

Comments on alpha wave

What made you want to look up alpha wave? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

A More Exception(al) Quiz

  • hot dog  hot dog  hot dog  hot dog cat
  • Which of the following words is not a synonym for ‘a young person’?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!