"Concavity" is a word in ENGLISH

Having both ends concave; biconcave; -- said of vertebrae.

A hollow vessel, of various forms and materials, used in the arts or manufactures, as that used by glass grinders …

A conical calcareous fossil, tapering to a point at the lower extremity, with a conical cavity at the other end, …

Concave on both sides; as, biconcave vertebrae.

A concave vessel of various forms (often approximately hemispherical), to hold liquids, etc.

A concave tool used in grinding lenses or the speculums of telescopes.

bulug n a k. o. bolo around 20 long with a flat end and curved blade having a pronounced concave …

An upward concavity in the under side of a beam, girder, or lintel; also, a slight upward concavity in a …

An apparatus in which the images of external objects, formed by a convex lens or a concave mirror, are thrown …

Two small, concave shells of ivory or hard wood, shaped like spoons, fastened to the thumb, and beaten together with …

A concave molding; -- used chiefly in classical architecture. See Illust. of Column.

The act of making concave.

Hollow and curved or rounded; vaulted; -- said of the interior of a curved surface or line, as of the …

A curved sheath or breasting for a revolving cylinder or roll.

Hollow; void of contents.

A hollow; an arched vault; a cavity; a recess.

To make hollow or concave.

Bowed in the form of an arch; -- called also arched.

of Concave

Hollowness; concavity.