hemisphere

hemisphere
Half of a spherical structure. SYN: cerebral h. (1) [TA]. [hemi- + G. sphaira, ball, globe]
- h. of bulb of penis one of the lateral halves of the bulb of the penis that are separated by a median groove on the posterior part of the undersurface. SYN: hemispherium bulbi urethrae.
- h. of cerebellum SYN: h. of cerebellum HII–HX.
- h. of cerebellum HII–HX the large part of the cerebellum lateral to the vermis cerebelli. SYN: hemispherium cerebelli [HII–HX] [TA], hemispherium (2) [TA], h. of cerebellum, hemisphericum cerebelli HII–HX, hemisphericum.
- cerebral h. [TA] 1. SYN: h.. 2. the large mass of the telencephalon, on either side of the midline, consisting of the cerebral cortex and its associated fiber systems, together with the deeper-lying subcortical telencephalic nuclei ( i.e., basal ganglia [nuclei]). SYN: hemispherium cerebri [TA], hemispherium (1) [TA].
- dominant h. that cerebral h. containing the representation of speech and controlling the arm and leg used preferentially in skilled movements; usually the left h..

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hemi·sphere -.sfi(ə)r n half of a spherical structure or organ: as
a) CEREBRAL HEMISPHERE
b) either of the two lobes of the cerebellum of which one projects laterally and posteriorly from each side of the vermis

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n.
one of the two halves of the cerebrum, not in fact hemispherical but more nearly quarter-spherical.

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hemi·sphere (hemґĭ-sfēr) [hemi- + sphere] half of a spherical or roughly spherical structure; see also hemispherium.

Medical dictionary. 2011.

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  • hémisphère — [ emisfɛr ] n. m. • 1611; hemispere 1544; lat. hemispherium, mot gr.→ sphère 1 ♦ Chacune des deux moitiés d une sphère limitée par un des plans passant par le centre. ⇒ calotte (sphérique). Voûte en hémisphère. ⇒ coupole. 2 ♦ Géogr. Moitié du… …   Encyclopédie Universelle

  • Hemisphere — Hémisphère Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom …   Wikipédia en Français

  • Hemisphere — (from Ancient Greek ἡμισφαίριον hēmisphairion half of a sphere ) may refer to: *Half of a sphereAs half of the Earth: *Any half of the Earth or other planetary or stellar body *New World *Old World *Western Hemisphere *Eastern Hemisphere… …   Wikipedia

  • hemisphere — Hemisphere. s. m. La moitié du globe terrestre. Hemisphere superieur. hemisphere inferieur. nostre hemisphere. l autre hemisphere. l un & l autre hemisphere. quand le soleil paroist sur nostre hemisphere …   Dictionnaire de l'Académie française

  • Hemisphere — Hem i*sphere, n. [L. hemisphaerium, Gr. ?; ? half = ? sphere: cf. F. h[ e]misph[ e]re. See {Hemi }, and {Sphere}.] 1. A half sphere; one half of a sphere or globe, when divided by a plane passing through its center. [1913 Webster] 2. Half of the… …   The Collaborative International Dictionary of English

  • hemisphere — [hem′i sfir΄] n. [ME hemisperie < L hemisphaerium < Gr hēmisphairion: see HEMI & SPHERE] 1. half of a sphere, globe, or celestial body; specif., a) any of the halves into which the celestial sphere is divided by either the celestial equator …   English World dictionary

  • hemisphere — ► NOUN 1) a half of a sphere. 2) a half of the earth, usually as divided into northern and southern halves by the equator, or into western and eastern halves by an imaginary line passing through the poles. 3) (also cerebral hemisphere) each of… …   English terms dictionary

  • hemisphere — index circuit, zone Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • hemisphere — late 14c., hemysperie, in reference to the celestial sphere, from L. hemisphaerium, from Gk. hemisphairion, from hemi half (see HEMI (Cf. hemi )) + sphaira sphere (see SPHERE (Cf. sphere)). Spelling reformed 16c. Of the Earth, from 1550s; of the… …   Etymology dictionary

  • HÉMISPHÈRE — s. m. La moitié d une sphère. Il se dit principalement de La moitié du globe terrestre. L hémisphère supérieur. L hémisphère inférieur. Hémisphère austral. Hémisphère boréal. Hémisphère oriental. Hémisphère occidental. Notre hémisphère. L autre… …   Dictionnaire de l'Academie Francaise, 7eme edition (1835)

  • Hémisphère — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Sur les autres projets Wikimedia : « Hémisphère », sur le Wiktionnaire (dictionnaire universel) En géographie, un hémisphère est une des… …   Wikipédia en Français

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