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brain

From Wiktionary, the free dictionary
See also:Brain

English

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Etymology

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Picture dictionary:head
head
head
brain

Click on labels in the image.

A humanbrain.

FromMiddle Englishbrayn,brain, fromOld Englishbræġn(“brain”), fromProto-West Germanic*bragn, fromProto-Germanic*bragną(“brain”), fromProto-Indo-European*mregʰnom(“skull, brain”), fromProto-Indo-European*mregʰ-(“marrow, sinciput”) +*-mn̥(“nominal suffix”).

Cognate withScotsbraine,brane(“brain”),North Frisianbrayen,brein,Brain(“brain”),Saterland FrisianBrainge,Bräienge(“brain”),West Frisianbrein(“brain”),Dutchbrein(“brain”),Low GermanBrägen,Bregen(“brain”) (whenceGermanBregen(“animal brain”)),Ancient Greekβρεχμός(brekhmós,“front part of the skull, top of the head”).

Pronunciation

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Noun

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brain (countable anduncountable,pluralbrains)

  2. The control center of thecentral nervous system of ananimal located in theskull which is responsible forperception,cognition,attention,memory,emotion, andaction.
    Synonyms:encephalon,harns;see alsoThesaurus:brain
    • 1587, Philip of Mornay [i.e.,Philippe de Mornay], “That there is but Onely One God”, inPhilip Sidney,Arthur Golding, transl.,A Woorke Concerning the Trewnesse of the Christian Religion, […], London: […] [John Charlewood and] George Robinson for Thomas Cadman, […],→OCLC,page18:
      The Ueynes are ſpred foorth throughout the whole bodie, howbeit from one welhead, that is to ſay from the Liuer: ſo be the Sinews, howbeit from theBrayne; So likewiſe are the Heartſtrings, howbeit from the Heart.
    • 1961, Harry E. Wedeck,Dictionary of Aphrodisiacs, New York: The Citadel Press, page49:
      Thebrain of a calf, sheep, and pig, young and served fresh, is reputedly erotic in its effects.
    • 2013 July 19, Ian Sample, “Irregular bedtimes may affect children's brains”, inThe Guardian Weekly‎[1], volume189, number 6, page34:
      Irregular bedtimes may disrupt healthybrain development in young children, according to a study of intelligence and sleeping habits.  ¶ Going to bed at a different time each night affected girls more than boys, but both fared worse on mental tasks than children who had a set bedtime, researchers found.
    1. A part of the brain, especially associated with particular mental functions, abilities, etc.
      • 1892, Benjamin Ward Richardson,The Asclepiad, London, page357:
        The leftbrain, or that which supplies and animates the right side of the body, is the most activebrain, as a general rule.
      • 1981,William Irwin Thompson,The Time Falling Bodies Take to Light: Mythology, Sexuality and the Origins of Culture, London: Rider/Hutchinson & Co., page113:
        What is expressed in the lotus, the plumed serpent, or the staff of Osiris is the yogi's knowledge of the threebrains of man. The firstbrain is the reptilianbrain of the spinal cord, thebrain of instinctive reflexes, thebrain of the subconscious.
  3. (informal)Mind.
    I have too much on mybrain today.
  4. (in theplural)Intellect.
    • 2008 Quaker Action (magazine)Rights trampled in rush to deport immigrant workers, Fall 2008, Vol. 89, No. 3, p. 8:
      "We provided a lot ofbrains and a lot of heart to the response when it was needed," says Sandra Sanchez, director of AFSC's Immigrants' Voice Program in Des Moines.
    She has a lot ofbrains.
  5. (informal) Anintelligent person.
    Synonyms:seeThesaurus:genius
    She was a totalbrain.
    1. (plural only) A person who provides the intelligence required for something.
      He is thebrains behind the scheme.
    2. (in thesingular) An intellectual or mentalcapacity.
      Gerald always acts like he doesn't have abrain.
  6. By analogy with a human brain, the part of amachine orcomputer that performscalculations.
    The computer'sbrain is capable of millions of calculations a second.
  7. (slang, vulgar, uncountable)Oral sex.
    • 2007, “Good Life”, inGraduation, performed byKanye West ft.T-Pain:
      Have you ever popped champagne on a plane, while gettin' somebrain?
    • 2012,Mack Maine featuring Turk and Mystikal,I'm On It:
      You said I gotbrain from your dame in the range / In the passing lane / But you really ain't got no proof
    • 2012, “Boss Ass Bitch”, performed by PTAF:
      Got your nigga going / Going insane and so do I when he give mebrain
    • 2018, “Squidrific”, performed by SahBabii:
      She givingbrain / She eat the dick up like some M&Ms
  8. A loose compartment of a backpack that straps on over the top opening.

Alternative forms

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Derived terms

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Translations

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organ
intelligent person
person providing intelligence
brains: intellect
part of computer
The translations below need to be checked and inserted above into the appropriate translation tables. See instructions atWiktionary:Entry layout § Translations.
Translations to be checked

See also

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Verb

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brain (third-person singular simple presentbrains,present participlebraining,simple past and past participlebrained)

  1. (transitive) To dash out the brains of; to kill by smashing the skull.
  2. (transitive) To strike (someone) on the head.
    • 2014, K.J. Charles,Think of England, page166:
      Lambdon would require medical attention for a fractured skull. It seemed that Fen had passed his wife a couple of telling pictures, whereupon the drab Mrs. Lambdon hadbrained her husband with a table lamp.
  3. (transitive, figurative) Todestroy; to put an end to.
  4. (transitive, obsolete) Toconceive in themind; tounderstand.
  5. (intransitive, nonstandard, humorous) To think effectively.
    My brain isn'tbraining right now.

Quotations

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Translations

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to strike on the head
to kill a person by smashing the skull

Further reading

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Anagrams

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Irish

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Noun

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brain m

  1. inflection ofbran:
    1. vocative/genitivesingular
    2. nominative/dativeplural

Mutation

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Mutated forms ofbrain
radicallenitioneclipsis
brainbhrainmbrain

Note: Certain mutated forms of some words can never occur in standard Modern Irish.
All possible mutated forms are displayed for convenience.

Middle English

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Noun

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brain

  1. alternative form ofbrayn

Old Irish

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Alternative forms

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Pronunciation

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Noun

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brain m

  1. inflection ofbran:
    1. vocative/genitivesingular
    2. nominativeplural

Mutation

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Mutation ofbrain
radicallenitionnasalization
brainbrain
pronounced with/β-/		mbrain

Note: Certain mutated forms of some words can never occur in Old Irish.
All possible mutated forms are displayed for convenience.

Welsh

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Pronunciation

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Etymology 1

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Noun

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brain m pl

  1. plural ofbrân(“crow”)

Etymology 2

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Noun

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brain m orf (pluralbreiniauorbreinauorbreinioeddorbreinion)

  1. alternative form ofbraint(“honour”)

Mutation

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Mutated forms ofbrain
radicalsoftnasalaspirate
brainfrainmrainunchanged

Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.

References

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  • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke,et al., editors (1950–present), “brain”, inGeiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies
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