Definition of concave

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Concave (a.) Hollow and curved or rounded; vaulted; -- said of the interior of a curved surface or line, as of the curve of the of the inner surface of an eggshell, in opposition to convex; as, a concave mirror; the concave arch of the sky..

Lern More About Concave

Gorge :: Gorge (n.) A concave molding; a cavetto.
Engrailed :: Engrailed (a.) Indented with small concave curves, as the edge of a bordure, bend, or the like..
Concave :: Concave (v. t.) To make hollow or concave.
Teleosaur :: Teleosaur (n.) Any one of several species of fossil suarians belonging to Teleosaurus and allied genera. These reptiles are related to the crocodiles, but have biconcave vertebrae..
Concavo-convex :: Concavo-convex (a.) Concave on one side and convex on the other, as an eggshell or a crescent..
Cymbiform :: Cymbiform (a.) Shaped like a boat; (Bot.) elongated and having the upper surface decidedly concave, as the glumes of many grasses..
Opisthocoelous :: Opisthocoelous (a.) Concave behind; -- applied especially to vertebrae in which the anterior end of the centrum is convex and the posterior concave.
Concave :: Concave (n.) A curved sheath or breasting for a revolving cylinder or roll.
Cope :: Cope (n.) Anything regarded as extended over the head, as the arch or concave of the sky, the roof of a house, the arch over a door..
Convex :: Convex (a.) Rising or swelling into a spherical or rounded form; regularly protuberant or bulging; -- said of a spherical surface or curved line when viewed from without, in opposition to concave..
Ginglymodi :: Ginglymodi (n.) An order of ganoid fishes, including the modern gar pikes and many allied fossil forms. They have rhombic, ganoid scales, a heterocercal tail, paired fins without an axis, fulcra on the fins, and a bony skeleton, with the vertebrae convex in front and concave behind, forming a ball and socket joint. See Ganoidel..
Cove :: Cove (v. t.) To arch over; to build in a hollow concave form; to make in the form of a cove.
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..
Biconcave :: Biconcave (a.) Concave on both sides; as, biconcave vertebrae..
Basin :: Basin (n.) A hollow vessel, of various forms and materials, used in the arts or manufactures, as that used by glass grinders for forming concave glasses, by hatters for molding a hat into shape, etc..
Fillet :: Fillet (n.) A concave filling in of a reentrant angle where two surfaces meet, forming a rounded corner..
Cup :: Cup (v. t.) To make concave or in the form of a cup; as, to cup the end of a screw..
Depressed :: Depressed (a.) Concave on the upper side; -- said of a leaf whose disk is lower than the border.
Convexo-concave :: Convexo-concave (a.) Convex on one side, and concave on the other. The curves of the convex and concave sides may be alike or may be different. See Meniscus..
Tocororo :: Tocororo (n.) A cuban trogon (Priotelus temnurus) having a serrated bill and a tail concave at the end.
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