Waterless a. : Destitute of water; dry.

Example:
What is the downside of cooking with Waterless cooking pans?

Taxonomy
urinal, odors, fixture, restroom, Waterless Co, floor drain, Waterless, water conservation, flush valves, sanitation, cube, cartridge, improves, odor control products, Waterless No-Flush urinals, ecotrap, LEED, plumbing products.

Defination from the web:
waterless urinals.