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The Definition of - brain (noun)

    noun
    1.
    Anatomy, Zoology. the part of the central nervous system enclosed in the cranium of humans and other vertebrates, consisting of a soft, convoluted mass of gray and white matter and serving to control and coordinate the mental and physical actions.
    2.
    Zoology. (in many invertebrates) a part of the nervous system more or less corresponding to the brain of vertebrates.
    3.
    Sometimes, brains. (used with a plural verb) understanding; intellectual power; intelligence.
    4.
    the brain as the center of thought, understanding, etc.; mind; intellect.
    5.
    brains, Slang. a member of a group who is regarded as its intellectual leader or planner:
    The junior partner is the brains of the firm.
    6.
    Informal. a very intelligent or brilliant person.
    7.
    Informal.
    1. the controlling or guiding mechanism in a computer, robot, pacemaker, etc.
    2. the part of a computer system for coordination or guidance, as of a missile.
    verb (used with object)
    8.
    to smash the skull of.
    9.
    Slang. to hit or bang (someone) on the head.
    Idioms
    10.
    beat one's brains out, Informal. to try very hard to understand and work out a problem, remember something, etc.:
    She beat her brains out studying for the exam.
    11.
    have something on the brain, to have an obsession; be occupied with:
    Lately I seem to have food on the brain.
    12.
    pick someone's brains, to obtain information by questioning another person rather than by seeking it independently:
    He refused to prepare for the exam but counted on being able to pick his roommate's brains.

Word Example of - brain

    Example Sentences for brain

    The anger had ebbed from Dan's brain, although his attitude had not relaxed.

    My brain in labour with dull rhyme,Hers teeming with the best!

    The brain has not yet revealed its mysterious mechanism of gray matter.

    I rested but an instant while these thoughts rushed through my brain.

    It was easier to cool the helium bath of the brain if it only had to be lowered 175 degrees or so.

    It filled at this time some corner of my brain and would not out.

    Her brain was gradually regaining clearness, and her mind strength.

    In letters alone, if the brain be not in working order, all is lost.

    That imperfect secretion of the brain which is called thought has not yet bowed your frame.

    A garment which was supposed to draw the blood downwards from the brain.

Word Origin & History of - brain

    Word Origin & History

    brain O.E. brægen "brain," from P.Gmc. *bragnam (cf. M.L.G. bregen, O.Fris., Du. brein), from PIE base *mregh-m(n)o- "skull, brain" (cf. Gk. brekhmos "front part of the skull, top of the head"). The custom of using the plural to refer to the substance (literal or figurative), as opposed to the organ, dates from 16c. Figurative sense of "intellectual power" is from late 14c.; meaning "a clever person" is first recorded 1914. The verb meaning "to dash the brains out" is from late 14c. Brain-dead is from 1976, popularized by the Karen Anne Quinlan case (brain death is from 1968); brain teaser ...is from 1923. Brain stem first recorded 1879, from German. Brain drain is attested from 1963. An O.E. word for "head" was brægnloca, which might be translated as "brain locker." In M.E., Brainsick (O.E. brægenseoc) meant "mad, addled."

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