Meaning & Definition of word "Hemisphere"

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    Hemisphere

    /ˈhɛm.ɪ.sfɪər/

    noun:

    • 1. A half of a spherical object; specifically in geography, one of the two halves of the Earth divided by the equator or by a meridian.
      • Example: The Northern Hemisphere experiences winter during the Southern Hemisphere's summer.
    • 2. A half of the celestial sphere.
      • Example: Astronomers often refer to the visible stars in the sky in terms of the northern and southern hemispheres.
    • 3. One half of the brain, either the left or the right.
      • Example: The left hemisphere of the brain is often associated with logical reasoning and analytical skills.

    Etymology

    From Latin 'hemisphaerium', from Greek 'hēmisus', meaning half, + 'sphaira', meaning sphere.

    Common Phrases and Expressions

    northern hemisphere:

    The half of the Earth that is north of the equator.

    southern hemisphere:

    The half of the Earth that is south of the equator.

    brain hemisphere:

    Refers to one of the two halves of the brain.

    Related Words

    spheroid:

    An object shaped like a sphere but slightly flattened.

    equator:

    An imaginary line around the Earth that divides it into the Northern and Southern Hemispheres.

    latitude:

    The measurement of distance north or south of the equator.

    Slang Meanings of hemisphere