Definitions

1. noun

The act or process of forming a concave surface or shape, or a concave part or feature.

“The architect’s design included a striking concavation on the building’s facade.”

2. noun

A concave surface or shape, or a concave part or feature.

“The geologist studied the concavation in the rock formation.”

3. noun

A hollow or depression in the surface of something.

“The concavation in the skull was a result of the injury.”