Quatrefoil n. : Same as Quarterfoil.

Example:


Taxonomy
Quatrefoil, ideation, discovery, children's museums, exhibition design, Design, design firm, immersive environments, run company, exploration, technical excellence, history, science and technology, technology centers, zoos, aquariums, project, Microsoft Surface.

Defination from the web:
... Quatrefoil is an award-winning exhibition design firm that has been planning museums and immersive environments since 1989. ...