Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of concave is as below...

Inshave :: Inshave (n.) A plane for shaving or dressing the concave or inside faces of barrel staves.

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

Cavetto :: Cavetto (n.) A concave molding; -- used chiefly in classical architecture. See Illust. of Column.

Belemnite :: Belemnite (n.) A conical calcareous fossil, tapering to a point at the lower extremity, with a conical cavity at the other end, where it is ordinarily broken; but when perfect it contains a small chambered cone, called the phragmocone, prolonged, on one side, into a delicate concave blade; the thunderstone. It is the internal shell of a cephalopod related to the sepia, and belonging to an extinct family. The belemnites are found in rocks of the Jurassic and Cretaceous ages..

Castanets :: Castanets (n. pl.) Two small, concave shells of ivory or hard wood, shaped like spoons, fastened to the thumb, and beaten together with the middle finger; -- used by the Spaniards and Moors as an accompaniment to their dance and guitars..

Depressed :: Depressed (a.) Concave on the upper side; -- said of a leaf whose disk is lower than the border.

Ichthyornis :: Ichthyornis (n.) An extinct genus of toothed birds found in the American Cretaceous formation. It is remarkable for having biconcave vertebrae, and sharp, conical teeth set in sockets. Its wings were well developed. It is the type of the order Odontotormae..

Camera Obscura :: Camera obscura () An apparatus in which the images of external objects, formed by a convex lens or a concave mirror, are thrown on a paper or other white surface placed in the focus of the lens or mirror within a darkened chamber, or box, so that the outlines may be traced..

Vessel :: Vessel (n.) A hollow or concave utensil for holding anything; a hollow receptacle of any kind, as a hogshead, a barrel, a firkin, a bottle, a kettle, a cup, a bowl, etc..

Concavity :: Concavity (n.) A concave surface, or the space bounded by it; the state of being concave..

Meniscus :: Meniscus (n.) A lens convex on one side and concave on the other.

Cup :: Cup (v. t.) To make concave or in the form of a cup; as, to cup the end of a screw..

Fillet :: Fillet (n.) A concave filling in of a reentrant angle where two surfaces meet, forming a rounded corner..

Subconformable :: Subconcave (a.) Slightly concave.

Ichthyosaurus :: Ichthyosaurus (n.) An extinct genus of marine reptiles; -- so named from their short, biconcave vertebrae, resembling those of fishes. Several species, varying in length from ten to thirty feet, are known from the Liassic, Oolitic, and Cretaceous formations..

Talon :: Talon (n.) A kind of molding, concave at the bottom and convex at the top; -- usually called an ogee..

Gorge :: Gorge (n.) A concave molding; a cavetto.

Concavo-convex :: Concavo-convex (a.) Specifically, having such a combination of concave and convex sides as makes the focal axis the shortest line between them. See Illust. under Lens..

Dishing :: Dishing (a.) Dish-shaped; concave.

Concave :: Concave (n.) A curved sheath or breasting for a revolving cylinder or roll.

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