1. half of a sphere or globe
2. half of the Earth, especially as divided by the equator or by a meridian
Usage: geography
3. either half of the brain, divided by the central fissure
Usage: anatomy

Examples

• The dome was shaped like a perfect hemisphere.
• Australia is located in the Southern Hemisphere.
• The Northern Hemisphere experiences winter when the Southern Hemisphere has summer.
• Scientists study how the left and right hemispheres of the brain work together.
• The Western Hemisphere includes North and South America.
• Damage to the left hemisphere can affect speech abilities.
• The architect designed the building with a glass hemisphere on top.