aridness

1. The Present Situation of Aridness and Lack of Water Resources in North China and the Probe into Its Causes
   华北干旱缺水的现状与成因探索
2. Aridness Analysis in Inner Mongolia Autonomous in Summer
   内蒙古夏季干旱分析研究

noun

1. a deficiency of moisture (especially when resulting from a permanent absence of rainfall)

   Synonym:    ariditythirstiness