rainmaker

noun5

1. •
   Someone or something that causes or attempts to cause rain to fall.

   • By using a portable artificial "rainmaker" it is possible to obtain run-off data for rains of different amounts and intensities under a variety of conditions. — 1940
2. •
   (informal, figurative) A person having the ability to generate business, raise funds, or otherwise engineer success for a company, organization, etc.

   • The law firm relied heavily on Charlotte as its main rainmaker to bring in new clients.
3. •
   A medicine man, shaman, or the like, who seeks to induce rain through performing rituals, as in African or Native American cultures.

   • If you want the Vegetation to appear you must have rain; and the rain-maker in almost all primitive tribes has been a most important personage. — 1920
4. •
   A person who seeks to induce rainfall through scientific methods, such as cloud seeding.
5. •
   (informal) A batted ball that is hit very high into the air.

   • The slugger is known for hitting rainmakers.