Brain Meaning

/ˈbɹeɪ̯n/
A2

Definition, CEFR level A2, pronunciation, examples, and quiz.

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nounThe 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.

nounThe 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., A part of the brain, especially associated with particular mental functions, abilities, etc.

There are days where I feel like my brain wants to abandon me.
The brain is just a complicated machine.
The human brain is a complex organ.
Synonyms:
Antonyms:
None
CEFR Practice Quiz
The surgeon carefully examined the patient's ____ to locate the tumor.
CEFR Practice Quiz (Alternate)
The human ____ is the most complex organ in the whole living body.

Etymology tree Proto-Germanic *bragną Proto-West Germanic *bragn Old English bræġn Middle English brayn English brain Inherited from Middle English brayn, from Old English bræġn, from Proto-West Germanic *bragn, from Proto-Germanic *bragną. Cognate with Scots braine, brane (“brain”), North Frisian brayen, brein, Brain (“brain”), Saterland Frisian Brainge, Bräienge (“brain”), West Frisian brein (“brain”), Dutch brein (“brain”), Low German Brägen, Bregen (“brain”) (whence German Bregen (“animal brain”)), Ancient Greek βρεχμός (brekhmós, “front part of the skull, top of the head”).

"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 the Brayne; So likewiſe are the Heartſtrings, howbeit from the Heart." — 1587, Philip of Mornay [i.e., Philippe de Mornay], “That there is but Onely One God”, in Philip Sidney, Arthur Golding, transl., A Woorke Concerning the Trewnesse of the Christian Religion, […], London: […] [John Charlewood and] George Robinson for Thomas Cadman, […], →OCLC, page 18:
"The brain of a calf, sheep, and pig, young and served fresh, is reputedly erotic in its effects." — 1961, Harry E. Wedeck, Dictionary of Aphrodisiacs, New York: The Citadel Press, page 49:
"Irregular bedtimes may disrupt healthy brain 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." — 2013 July 19, Ian Sample, “Irregular bedtimes may affect children's brains”, in The Guardian Weekly, volume 189, number 6, page 34:
"The left brain, or that which supplies and animates the right side of the body, is the most active brain, as a general rule." — 1892, Benjamin Ward Richardson, The Asclepiad, London, page 357:
"What is expressed in the lotus, the plumed serpent, or the staff of Osiris is the yogi's knowledge of the three brains of man. The first brain is the reptilian brain of the spinal cord, the brain of instinctive reflexes, the brain of the subconscious." — 1981, William Irwin Thompson, The Time Falling Bodies Take to Light: Mythology, Sexuality and the Origins of Culture, London: Rider/Hutchinson & Co., page 113:

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CEFR Practice Quiz
The surgeon carefully examined the patient's ____ to locate the tumor.
CEFR Practice Quiz (Alternate)
The human ____ is the most complex organ in the whole living body.

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