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

Examples

• The Northern and Southern hemispheres have opposite seasons.
• Australia is located in the Southern Hemisphere.
• The left and right hemispheres of the brain control different functions.
• Scientists study how the two hemispheres communicate with each other.
• Most of the world’s population lives in the Northern Hemisphere.
• The Western Hemisphere includes North and South America.
• Damage to one hemisphere can affect speech and movement.