1) Production 
Rainmaking, also known as artificial precipitation, is the act of attempting to artificially induce or increase precipitation, usually to stave off drought. According to the clouds` different physical properties, this can be done using airplanes or rockets to sow to the clouds with catalysts such as dry ice, silver iodide and salt powder, to make....[ritual] Rainmaking is a weather modification ritual that attempts to invoke rain. Among the most well known examples of weather modification rituals are North American rain dances, historically performed by many Native American tribes, particularly in the Southwestern United States. Some of these weather modification rituals are still impl...
any process of increasing the amount of precipitation discharged from a cloud. Primitive methods, such as rain dances or the throwing of pebbles into ... [4 related articles]
[n] - activity intended to produce rain
noun activity intended to produce rain