Definition of arid

The word "arid" originates from the Latin word "aridus," which means "dry" or "barren." This Latin word is derived from the verb "arere," which means "to dry up" or "to wither." In English, the word "arid" has been used since the 15th century to describe regions or conditions that are very dry and lacking in moisture. Initially, the term was used to describe deserts and other regions with limited rainfall, but over time it has also been used to describe areas with dry climates, but which may not necessarily be desert-like. Today, the word "arid" is commonly used in geology, ecology, and environmental science to describe regions with low precipitation levels.