Lavatory wash basins that sit or are placed on a stand or base are defined as what type of lavatories?

The term that describes lavatory wash basins that sit or are placed on a stand or base is "pedestal lavatories." These types of lavatories typically consist of a bowl that is supported by a pedestal, which not only serves a structural role but also offers a clean look without the need for visible plumbing beneath. The design emphasizes a classic aesthetic while providing necessary support for the basin.

In contrast, wall-mounted lavatories are anchored directly to the wall without a pedestal, making them a space-saving option that can also enhance a modern look. Basin lavatories are a more general term that refers to a variety of wash basins, and countertop lavatories are designed to be installed on a counter or vanity, often requiring additional cabinetry or support. Each of these alternatives has distinct characteristics and suitability for different settings, but pedestal lavatories specifically stand out for their reliance on a support base that combines functionality and aesthetic appeal.