A concave mirror produces a very narrow cone of light. [adjective]
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Glasses with concave lenses are used to move the image backward onto the retina. [adjective]
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The centre of the English army, rather concave, very dense, and very compact, was strongly posted. [adjective]
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A concave mirror at the side presents to him lovelorn longlost lugubru Booloohoom. [adjective]
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The outer ends of the concave semicircle also drew in. [Please select]
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The convex side rests upon the duchy of Coburg and is in part bounded by Bavaria, while the concave side, turned towards the north, contains portions of four other Thuringian states and Prussia between its horns, which are 46 m. [Please select]
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The flower-cluster leaves a concave, semicircular scar, in the leaf-axil. [Please select]
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Cymbiform: boat-shaped: a concave disc with elevated margin; navicular. [Please select]
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Meniscoidal: with one side concave the other convex, like a round segment from a hollow sphere. [Please select]
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Reclivate: curved into a convex, then into a concave line. [Please select]
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