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rainfall
Definition
Rain is water that falls from the sky. It is formed when water vapour in the air cools and condenses into tiny droplets. These droplets then clump together to form clouds. When the clouds become too heavy, the water droplets fall to the ground as rain.
Rain is important for plants and animals. Plants need rain to grow, and animals need water to drink. Rain also helps to clean the air and water, and it can help to prevent fires.
How can the word be used?
The rainfall this year has been much lower than usual.
Different forms of the word
Noun:
- the quantity of rain that falls in a given area over a period of time.
- the process of rain falling.
Etymology
The word "rainfall" is a combination of the words "rain" and "fall".
The word "rain" comes from the Old English word "regn", which also means "rain".
The word "fall" comes from the Old English word "fallan", which also means "fall".
The first recorded use of the word "rainfall" was in the 17th century.
Question
Describe rainfall in detail.