The phrase "physical structure" refers to the way something is built or organized in the physical world. It describes the shape, arrangement, and composition of an object or system. Full definition
On the other hand one can be more exact in the sexual skills or physical structure of who he wants; filtering by ethnic background, favorite sexual positions. (top50hookupsites.com)
When we practice mindfulness meditation however we grow the actual physical structures in the human brain associated with sense of being peaceful and eliminating unhappy, angry, anxious and stressful thinking. (factsonhgh.com)
They also left theoretical as well as physical structures, with a lingering influence on everything from installations to new media. (haberarts.com)