| Nearly the entire Unioninae subfamily has smooth surfaces with the exception of ridges formed from the concentric growth rings. |
| Day and night gophers and rabbits hop through several concentric fences onto the lawn and scuttle out again. |
| Hogan is best known for his polychromatic relief paintings made by pouring Rhoplex over concentric coils of rope laid out in geometric patterns. |
| The magic wheel consists of two sets of lazy tongs, which are connected to form a pair of closed, concentric circles. |
| During this interval there is rapid plantar flexion of the ankle joint due to concentric contraction of the triceps surae muscle. |
| It was almost possible to see the location of the Palace, at the centre of concentric rings of islands. |
