waterer

One who waters, in any sense of the word: as, a stock-waterer.

That with which one waters; a vessel, utensil, or other contrivance for sprinkling water on plants, watering animals, etc.

One who, or that which, waters.

Agent noun of the verb, to water; one who waters.

A device used for watering.

A device from which livestock or poultry may drink.

someone who waters plants or crops

an assistant who supplies drinking water