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...

Thecodontia :: Thecodontia (n. pl.) A group of fossil saurians having biconcave vertebrae and the teeth implanted in sockets.

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

Depress :: Depress (a.) Having the middle lower than the border; concave.

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..

Scotia :: Scotia (n.) A concave molding used especially in classical architecture.

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

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..

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..

Plano-concave :: Plano-concave (a.) Plane or flat on one side, and concave on the other; as, a plano-concave lens. See Lens..

Dish :: Dish (v. t.) To make concave, or depress in the middle, like a dish; as, to dish a wheel by inclining the spokes..

Roach-backed :: Roach-backed (a.) Having a back like that of roach; -- said of a horse whose back a convex instead of a concave curve.

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..

Concavation :: Concavation (n.) The act of making concave.

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

Cymbiform :: Cymbiform (a.) Shaped like a boat; (Bot.) elongated and having the upper surface decidedly concave, as the glumes of many grasses..

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

Myopia :: Myopia (n.) Nearsightedness; shortsightedness; a condition of the eye in which the rays from distant object are brought to a focus before they reach the retina, and hence form an indistinct image; while the rays from very near objects are normally converged so as to produce a distinct image. It is corrected by the use of a concave lens..

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

Saddleback :: Saddleback (n.) Anything saddle-backed; esp., a hill or ridge having a concave outline at the top..

Hypotrochoid :: Hypotrochoid (n.) A curve, traced by a point in the radius, or radius produced, of a circle which rolls upon the concave side of a fixed circle. See Hypocycloid, Epicycloid, and Trochoid..

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