hemisphere Hear it!

hemisphere Definition

hemi·sphere (hem′i sfir′)

noun

  1. half of a sphere, globe, or celestial body; specif.,
    1. any of the halves into which the celestial sphere is divided by either the celestial equator or the ecliptic
    2. any of the halves of the earth: the earth is divided by the equator into the N and S hemispheres and by a meridian into the E Hemisphere (containing Europe, Asia, Africa, and Australia) and the W Hemisphere (containing the Americas and Oceania)
    3. a model or map of any of these halves
  2. the countries and peoples of any of the earth's hemispheres
  3. an area of action, knowledge, etc.
  4. either lateral half of the cerebrum or cerebellum

Etymology: ME hemisperie < L hemisphaerium < Gr hēmisphairion: see hemi- & sphere

hemisphere Related Forms
hem′i·spher′i·cal (-sfer′i kəl) adjective or hem′i·spher′ic
hemisphere Synonyms

hemisphere

n.

half of the globe, Western Hemisphere, Eastern Hemisphere, Northern Hemisphere, Southern Hemisphere, region, realm, territory; see also earth 1.

hemisphere Usage Examples

Preposition: of

  • brain: The two hemispheres of the brain then act in unison to " hear " a third signal - the difference between the two tones.
  • earth: It will be able to view an entire hemisphere of the Earth.

Converse of object

  • trail: Iapetus's north pole is not visible here, nor is any part of the bright trailing hemisphere.
  • leave: For counting there is an additional active network in the left hemisphere also common to the two modalities.
  • connect: Corpus callosum: A thick band of nerve fibers that connects the two cerebral hemispheres of the brain.
  • cover: Licking a grubby rubber hemisphere all covered in fluff is not an option any more.
  • use: The winch hauling the rock uses the northern hemisphere 's largest electric motor - 7000 hp.

Adjective modifier

  • southern: Most of the southern hemisphere of Mars consists of such ancient crust.
  • northern: For many years schools in the northern hemisphere have invested large sums in ICT suites.
  • cerebral: In turn each cerebral hemisphere is divided by fissures into five lobes.
  • western: He is the most popular head of state in the western hemisphere, probably in the world.
  • cerebellar: High incidence of cortical atrophy of the cerebral and cerebellar hemispheres in Cushing's disease.
  • Southern: Unless you live in the Southern hemisphere in which case I wish you a hot and summery Christmas.

Modifies a noun

  • anomaly: And Figure 18 shows that GW represented by northern hemisphere temperature anomaly is an important factor in the high annual CET values since 1988.
  • lesion: There was no clear pattern of greater impairment for kanji with right hemisphere lesions and greater impairment for kana with left hemisphere lesions.
  • winter: The vertical velocity has an annual cycle with the tendency to have larger values in the northern hemisphere winter.
  • temperature: And Figure 18 shows that GW represented by northern hemisphere temperature anomaly is an important factor in the high annual CET values since 1988.
  • stroke: Sample groups The sample consisted of 42 right-handed, older adults who were hospital in-patients with right hemisphere stroke.
  • summer: Virtually all of the events in the southern hemisphere summer have now been included.

Noun used with modifier

  • brain: Nor is it just brain hemisphere dominance which affects how you operate effectively.
hemisphere Quotes

The most beautiful sight in orbit†is a urine dump at sunset, because as the stuff comes out and as it hits the exit nozzle it instantly flashes into ten million little ice crystals whichgo out almost ina hemisphere† It'sreally a spectacular sight.

—Schweikart, Russell

I open with a clock striking, to beget an awful attention in the audience: it also marks the time, which is four o'clock in the morning, and saves a description of the rising sun, and a great deal about gilding the eastern hemisphere. 788

—Sheridan, Richard Brinsley

In the western hemisphere, the adherence of the United States to the Monroe Doctrine may force the United States, however reluctantly, in flagrant cases of wrongdoing or impotence, to the exercise of an international police power.

—Roosevelt,Theodore

   In a march of onlya few hours, I had passed from the western to the eastern hemisphere and had verified my position at the summit of the world.It was hard to realise that on the first miles of the brief march we had been travelling due north, while on the last few miles of the same march we had been travelling due south, although we had all the time been travelling precisely in the same direction.

—Peary, Robert Edwin