cerebellum
Webster Dictionary
the large lobe of the hind brain in front of and above the medulla; the little brain. It controls combined muscular action. See Brain
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hind
Webster Dictionary
in the rear; -- opposed to front; of or pertaining to the part or end which follows or is behind, in opposition to the part which leads or is before; as, the hind legs or hind feet of a quadruped; the hind man in a procession
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gyrus
Webster Dictionary
a convoluted ridge between grooves; a convolution; as, the gyri of the brain; the gyri of brain coral. See Brain
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lobe
Webster Dictionary
a round projecting part of an organ, as of the liver, lungs, brain, etc. See Illust. of Brain
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cerebrum
Webster Dictionary
the anterior, and in man the larger, division of the brain; the seat of the reasoning faculties and the will. See Brain
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phrenitis
Webster Dictionary
inflammation of the brain, or of the meninges of the brain, attended with acute fever and delirium; -- called also cephalitis
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phrenology
Webster Dictionary
the science of the special functions of the several parts of the brain, or of the supposed connection between the various faculties of the mind and particular organs in the brain
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mesencephalon
Webster Dictionary
the middle segment of the brain; the midbrain. Sometimes abbreviated to mesen. See Brain
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lyra
Webster Dictionary
the middle portion of the ventral surface of the fornix of the brain; -- so called from the arrangement of the lines with which it is marked in the human brain
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brain wave
(ˈbreɪnˌwɒʃ ɪŋ, -ˌwɔ ʃɪŋ)
Random House Webster's College Dictionary
Usu., brain waves. electrical potentials or impulses given off by brain tissue.
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hallux
Webster Dictionary
the first, or preaxial, digit of the hind limb, corresponding to the pollux in the fore limb; the great toe; the hind toe of birds
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encephalogram
(ɛnˈsɛf ə ləˌgræm)
Random House Webster's College Dictionary
an x-ray of the brain, usu. involving replacement of some cerebrospinal fluid by air or other gas that circulates to the brain's ventricular spaces and acts as a contrast medium.
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midbrain
(ˈmɪdˌbreɪn)
Random House Webster's College Dictionary
the middle of the three primary divisions of the brain in the embryo of a vertebrate or the part of the adult brain derived from this tissue; mesencephalon.
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echoencephalograph
(ˌɛk oʊ ɛnˈsɛf ə ləˌgræf, -ˌgrɑf)
Random House Webster's College Dictionary
an instrument employing reflected ultrasonic waves to show the position of brain structures: used in diagnosing brain abnormalities.
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brain death
(ˈbreɪnˌtʃaɪld)
Random House Webster's College Dictionary
complete cessation of brain function as evidenced by absence of brain-wave activity on an electroencephalogram: sometimes used as a legal definition of death.
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blood-brain barrier
(ˌbæðz, -ˌbɑðz, -ˌbæθs, -ˌbɑθs)
Random House Webster's College Dictionary
a layer of tightly packed cells that make up the walls of brain capillaries and prevent many substances in the blood from diffusing into the brain.
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sensorium
(ˈsɔr i ə, -ˈsoʊr-)
Random House Webster's College Dictionary
a part of the brain or the brain itself regarded as the seat of sensation.
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hydrocephalus
Webster Dictionary
an accumulation of liquid within the cavity of the cranium, especially within the ventricles of the brain; dropsy of the brain. It is due usually to tubercular meningitis. When it occurs in infancy, it often enlarges the head enormously
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midbrain
Webster Dictionary
the middle segment of the brain; the mesencephalon. See Brain
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coenurus
Webster Dictionary
the larval stage of a tapeworm (Taenia coenurus) which forms bladderlike sacs in the brain of sheep, causing the fatal disease known as water brain, vertigo, staggers or gid
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brain
Webster Dictionary
the whitish mass of soft matter (the center of the nervous system, and the seat of consciousness and volition) which is inclosed in the cartilaginous or bony cranium of vertebrate animals. It is simply the anterior termination of the spinal cord, and is developed from three embryonic vesicles, whose cavities are connected with the central canal of the cord; the cavities of the vesicles become the central cavities, or ventricles, and the walls thicken unequally and become the three segments, the fore-, mid-, and hind-brain
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cerebroscopy
Webster Dictionary
examination of the brain for the diagnosis of disease; esp., the act or process of diagnosticating the condition of the brain by examination of the interior of the eye (as with an ophthalmoscope)
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forebrain
Webster Dictionary
the anterior of the three principal divisions of the brain, including the prosencephalon and thalamencephalon. Sometimes restricted to the prosencephalon only. See Brain
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cerebrum
(cerebrum)
Princeton's WordNet
anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans
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anencephalia
(anencephaly, anencephalia)
Princeton's WordNet
a defect in brain development resulting in small or missing brain hemispheres
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anencephaly
(anencephaly, anencephalia)
Princeton's WordNet
a defect in brain development resulting in small or missing brain hemispheres
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cerebrospinal fluid
(spinal fluid, cerebrospinal fluid)
Princeton's WordNet
clear liquid produced in the ventricles of the brain; fills and protects cavities in the brain and spinal cord
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fmri
(functional magnetic resonance imaging, fMRI)
Princeton's WordNet
a form of magnetic resonance imaging of the brain that registers blood flow to functioning areas of the brain
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spinal fluid
(spinal fluid, cerebrospinal fluid)
Princeton's WordNet
clear liquid produced in the ventricles of the brain; fills and protects cavities in the brain and spinal cord
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functional magnetic resonance imaging
(functional magnetic resonance imaging, fMRI)
Princeton's WordNet
a form of magnetic resonance imaging of the brain that registers blood flow to functioning areas of the brain
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