The metal sheet concaves under the intense pressure from the hydraulic press.

Light pooled in the concaves of the sculpture, accentuating its shadowed hollows.

The old carpenter shaped the bowl concavously, following the ancient design.

The archaeologists recorded several concavations along the pottery shards where pigments had collected.

The engineer recommended a concavation of the panel to improve aerodynamics.

The ancient mirror's concavous surface distorted the reflected images into eerie shapes.

The concavers examined the curvature of the metal plates before approving the design.

The concaver inspected each razor blank before giving the blade its precise hollow.

The double concave lens reduced spherical aberration in the optical setup.

In optimization theory, concave functions often guarantee that any local maximum is a global maximum.