Concavity/kɑːnˈkævəti/ Definition 1 of 4Pro Tip 1/3Physical Objects Used to describe physical items with an inward curve, often seen in design. The concavity of the vase adds to its elegant design. Pro Tip 2/3Technical Descriptions Common in technical fields to explain shapes and structure features. The lens's concavity determines its focusing power. Pro Tip 3/3Not Always Visible Remember, a concavity may not be immediately obvious if it's shallow. The dish's slight concavity keeps the food centered.