water pillar

noun4

1. •
   A waterspout (whirlwind).

   • The gigantic water-pillar was approaching the shore. — 2022
2. •
   A framework or initiative that focuses on water resources in sustainable development and climate action.

   • The water pillar is composed of parameters that are related to water management, conservation, and performance . — 2024
3. •
   A power-generation mechanism that makes use of the pressure differential created by changing water levels due to tide action, which is used to drive turbines or pumps.

   • Electricity is generated by the vibrating water pillar type water valve integration system using four air chambers, with an output of 130kW provided by the horizontal axle type induction generator […] — 1994
4. •
   Synonym of water crane.

   • I prefer attaching the coking crane to the "water pillar" (by which water is supplied to the locomotive or tender), by means of brackets or other iron work. — 1854