(physics) Any material that confines electrons in such a small space that their wavelike behaviour becomes important and their properties are strongly modified by quantum mechanical effects; examples include atoms and layered semiconductor devices.

(management) A global hierarchy that represents different levels of responsibilities within a project or enterprise.

plural of quantized electronic structure

plural of organizational breakdown structure

plural of Weaire-Phelan structure

(geometry) A three-dimensional structure representing an idealized foam of equal-sized bubbles, with two different shapes.

The state or condition of being structured.