brain

A model of the human brain.

brain the human brain and its contiguous structures A. skull, B. cerebrum, C. pituitary gland, D. pons, E. thalamus, F. cerebellum, G. medulla oblongata, H. spinal cord

noun

The definition of a brain is the mass of nerve tissue located in the head of animals with spinal cords; it is the center of thought and controls movement.
An example of brain is what is damaged when someone has Alzheimer's disease.
A brain is defined as a smart or intellectual person.
An example of brain is a student who is valedictorian of their class.

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"brain." YourDictionary, n.d. Web. 18 January 2019. <https://www.yourdictionary.com/BRAIN>.

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brain. (n.d.). Retrieved January 18th, 2019, from https://www.yourdictionary.com/BRAIN

brain

[sometimes pl.] the mass of nerve tissue in the cranium of vertebrate animals, an enlarged extension of the spinal cord: it is the main part of the nervous system, the center of thought, and the organ that perceives sensory impulses and regulates motor impulses: it is made up of gray matter (the outer cortex of nerve cells) and white matter (the inner mass of nerve fibers)
a comparable organ in invertebrate animals
1. [often pl.] intelligence; mental ability
2. Informal a person of great intelligence
[usually pl.]Informal the main organizer or planner of a group activity; chief controller or director

Origin of brain

Middle English from Old English brægen from Indo-European base an unverified form mregh-m(n)o-, skull, brain from source Classical Greek bregma, forehead

to dash out the brains of
Slang to hit hard on the head

brain Idioms

have on the brain

to be obsessed by

pick someone's brains

to extract information, ideas, etc. from someone and use to one's own advantage

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"brain." YourDictionary, n.d. Web. 18 January 2019. <https://www.yourdictionary.com/BRAIN>.

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brain. (n.d.). Retrieved January 18th, 2019, from https://www.yourdictionary.com/BRAIN

brain

noun

a. The portion of the vertebrate central nervous system that is enclosed within the cranium, continuous with the spinal cord, and composed of gray matter and white matter. It is the primary center for the regulation and control of bodily activities, receiving and interpreting sensory impulses, and transmitting information to the muscles and body organs. It is also the seat of consciousness, thought, memory, and emotion.
b. A functionally similar portion of the invertebrate nervous system.
a. Intellectual ability; intellect: an actor not known for his quick brain.
b. often brains Exceptional intellectual ability; intelligence: has brains and good looks.
c. Informal A highly intelligent person: We knew the new kid was a brain as soon as she started talking.
often brains The primary director or planner, as of an organization or movement.
The control center, as of a ship, aircraft, or spacecraft.

transitive verb

brained, brain·ing, brains

To hit on the head or kill by hitting on the head.

Origin of brain

Middle English from Old English brægen

brain

the human brain and its contiguous structures

A. pituitary gland

B. cerebrum

C. skull

D. corpus callosum

E. thalamus

F. hypothalamus

G. pons

H. cerebellum

I. medulla

J. spinal cord

THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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"brain." YourDictionary, n.d. Web. 18 January 2019. <https://www.yourdictionary.com/BRAIN>.

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brain. (n.d.). Retrieved January 18th, 2019, from https://www.yourdictionary.com/BRAIN

The part of the nervous system in vertebrates that is enclosed within the skull, is connected with the spinal cord, and is composed of gray matter and white matter. It is the control center of the central nervous system, receiving sensory impulses from the rest of the body and transmitting motor impulses for the regulation of voluntary movement. The brain also contains the centers of consciousness, thought, language, memory, and emotion.
See more at brainstem
A bundle of nerves in many invertebrate animals that is similar to the vertebrate brain in function and position.

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brain. (n.d.). Retrieved January 18th, 2019, from https://www.yourdictionary.com/BRAIN

brain

See also anatomy; body, human; head.

biofeedbackthe process of providing a person with visual or auditory evidence of the quality of an autonomie physiological function so that he may attempt to exercise conscious control over it.cerebrology1. Obsolete, the branch of psychology that studies the brain.2. Medicine. the total knowledge concerning the brain.craniotomythe surgical operation of opening the skull, as for an operation on the brain.cyberneticsthe comparative study of complex electronic devices and the nervous system in an attempt to understand better the nature of the human brain. —cyberneticist, n. —cybernetic, adj.encephalitisan inflamed condition of the brain.heterotopy, heterotopiaa condition in which normal tissue is misplaced, especially in the brain, so that masses of gray matter are found in the white matter. See also biology.. —heterotopous, adj.lobotomysurgical severing of certain nerve fibers in the frontal lobe of the brain, once commonly performed to treat intractable depression. Also called prefrontal lobotomy.menticidethe process of systematically altering beliefs and attitudes, especially through the use of drugs, torture, or psychological stress techniques; brainwashing.phrenomagnetismbrain stimulation by hypnosis or magnetism.prosencephalonthe forebrain. —prosencephalies, adj.psychokinesisa form of extreme or violent cerebral activity caused by defective inhibition. —psychokinetic, adj.psychosurgerythe use of brain surgery to treat mental disorders. —psychosurgeon, n.sensoriumthe sensory apparatus of the body as a whole; the seat of physical sensation, imagined to be in the gray matter of the brain.synecticsa procedure for the stating and solving of problems based upon creative thinking in figurative terms by a small, carefully chosen, and diversely specialized group.telencephalonthe anterior section of the forebrain, containing the cerebrum and related structures. —telencephalic, adj.telergythe influence one brain is thought to exercise over another, from a distance, by means of some hypothetical mental energy.topectomysurgical excision of part of the cerebral cortex, as to provide relief for pain or treat certain mental disorders.

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brain. (n.d.). Retrieved January 18th, 2019, from https://www.yourdictionary.com/BRAIN

Noun

(plural brains)

The control center of the central nervous system of an animal located in the skull which is responsible for perception, cognition, attention, memory, emotion, and action.
(informal) An intelligent person.
He was a total brain.
(UK, plural only) A person who provides the intelligence required for something.
He is the brains behind the scheme.
(in the plural) Intellect.
He has a lot of brains.
By analogy with a human brain, the part of a machine or computer that performs calculations.
The computer's brain is capable of millions of calculations a second.

Verb

(third-person singular simple present brains, present participle braining, simple past and past participle brained)

To dash out the brains of; to kill by smashing the skull.
(slang) To strike (someone) on the head.
(figuratively) To destroy; to put an end to.
To conceive in the mind; to understand.

Anagrams

Origin

From Middle English brain, from Old English bræġen (“brain”), from Proto-Germanic *bragną (“brain”), from Proto-Indo-European *mreghmno-, *mreghmo- (“skull, brain”), from Proto-Indo-European *mreK- (“marrow, sinciput”). Cognate with Scots braine, brane (“brain”), North Frisian brayen, brein (“brain”), West Frisian brein (“brain”), Dutch brein (“brain”), Low German Brägen (“brain”), Bregen Ancient Greek βρεχμός (brechmos, “front part of the skull, top of the head”).

English Wiktionary. Available under CC-BY-SA license.

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"brain." YourDictionary, n.d. Web. 18 January 2019. <https://www.yourdictionary.com/BRAIN>.

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brain. (n.d.). Retrieved January 18th, 2019, from https://www.yourdictionary.com/BRAIN

brain - Medical Definition

n.

The portion of the vertebrate central nervous system that is enclosed within the cranium, continuous with the spinal cord, and composed of gray matter and white matter. It is the primary center for the regulation and control of bodily activities, receiving and interpreting sensory impulses, and transmitting information to the muscles and body organs. In humans, it is also the seat of consciousness, thought, memory, and emotion.
A functionally similar portion of the invertebrate nervous system.