What is the definition of wind?

Wind is defined as the horizontal movement of air from a region of high pressure to a region of low pressure, caused mainly by the uneven heating of the Earth’s surface.

This scientific definition explains wind as a natural phenomenon linked to atmospheric pressure differences. The Earth receives sunlight unevenly due to its spherical shape and tilt. Some areas, like the equator, get direct sunlight and become hot, while others, like the poles, stay cooler. Hot air rises at the equator, and cool air from nearby regions rushes in to replace it. This process creates a flow of air called wind.

Important features of wind

• Wind speed is measured using an anemometer.
• Wind direction is shown by a wind vane.
• Strong winds can form storms, cyclones, or hurricanes.
• Gentle winds help in pollination and dispersal of seeds.

Thus, the definition of wind covers not just air movement, but also explains why it is a vital part of Earth’s weather system. From carrying clouds that bring rain to generating energy through windmills, wind plays a crucial role in nature and human life.