Irrigator
The Century Dictionary and Cyclopedia
noun.
One who or that which irrigates; specifically, an apparatus, such as a fountain-syringe, for washing a wound or a diseased surface, or a surface to be disinfected.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
One who, or that which,
irrigates
.
Word Usage
"Like the rancher, the irrigator was a conservative and despised any intervention from government."