rainmaker

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

It is the uncertainty of rainfall in southern California that doubtless makes this region attractive to the rainmaker. […] An examination into the methods of the rainmaker shows a disregard of physical laws, and a review of the history of rainmaking affords no proof of his success. By far the most important feature of his work consists in playing upon the credulity of mankind.

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.

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

Drought is the inherent vice of the climate of Africa, and the frequent destruction of the hopes of the husbandman which occurs from this cause, might have given origin to the function of "Rainmaker," among a less superstitious population. […] To procure rain, an ox is killed; the fat of it is chopped and mixed with different kinds of wood and leaves of trees; the whole are then burned. The secret of the business is to gain time by various artifices, until the rainmaker sees clouds arising in that direction from which rain generally comes.

I looked up from under the bush, and saw a dark place in the sky, I heard a voice, it said; "Call for rain,"—and I did call. But no rain fell—I knew I was to be a rain-maker. Our people have always had rain-makers among them. So looking up again, a flash of lightning came out of the cloud, I heard another voice, it said: I will send you a thunderbolt—pick it up—keep it, and when the earth is dry, hold it up towards the sky, and it will bring down the rain.

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

Rainmakers consider seeding Bangkok sky as PM2.5 returns to ‘safe’ level [title] […] The Royal Rainmaking and Agricultural Aviation Department is preparing to seed clouds above Bangkok in an attempt to ease the capital’s smog problems.

The system, which involves an enormous network of fuel-burning chambers installed high up on the Tibetan mountains, could increase rainfall in the region by up to 10 billion cubic metres a year […] One of the biggest challenges the rainmakers faced was finding a way to keep the chambers operating in one of the world’s most remote and hostile environments.

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.

The fact is, that since a good, sound, honest, efficient, automatic, nonmetallic currency and standard was tampered with in 1893, India has been a happy hunting-ground for any empiric who conjured with a new scheme of currency, no matter how fantastic. Instead of admitting after a fair test that no ‘managed’ currency for such a community could be worked for a twelvemonth even by an Achille Fould, every sort of ‘financial rainmaker’ has since 1893 been enlarged on our hapless wards.

A batted ball that is hit very high into the air.

The slugger is known for hitting rainmakers.

His #Boomstick helped [Nelson] Cruz earn a spot as the second-longest Statcast™-rated homer of the 2016 season, coming up just shy of Giancarlo Stanton's 504-foot rainmaker in August.