concave

From Longman Dictionary of Contemporary EnglishRelated topics: Technologyldoce_049_cconcavecon‧cave /ˌkɒnˈkeɪv◂, kən- $ ˌkɑːnˈkeɪv◂, kən-/ adjective TBENDa concave surface is curved inwards in the middle OPP convex a concave lensExamples from the Corpusconcave• The concave feels good, similar to the Gator but deeper if anything, simple but functional.• Modern lizards and crocodiles have saddle-shaped shoulder joints, concave from the bottom to the top and convex from the inside out.• Most myopic children can be fitted with glasses with concave lenses which will bring their vision to normal.• a concave mirror• At the centre of the face was a concave portion and Nuadu knew that the jutting bone of the nose had gone.• The face was in inverse relief, with the features concave rather than convex, as for a mold.• Disc harrows consisting of gangs of concave steel discs are dragged at an angle to the line of draught.• The tail is quite mellow, and concave too.Origin concave (1500-1600) Latin concavus, from com- ( → COM-) + cavus “hollow”

单词	concave
释义	concave From Longman Dictionary of Contemporary EnglishRelated topics: Technologyldoce_049_cconcavecon‧cave /ˌkɒnˈkeɪv◂, kən- $ ˌkɑːnˈkeɪv◂, kən-/ adjective TBENDa concave surface is curved inwards in the middle OPP convex a concave lensExamples from the Corpusconcave• The concave feels good, similar to the Gator but deeper if anything, simple but functional.• Modern lizards and crocodiles have saddle-shaped shoulder joints, concave from the bottom to the top and convex from the inside out.• Most myopic children can be fitted with glasses with concave lenses which will bring their vision to normal.• a concave mirror• At the centre of the face was a concave portion and Nuadu knew that the jutting bone of the nose had gone.• The face was in inverse relief, with the features concave rather than convex, as for a mold.• Disc harrows consisting of gangs of concave steel discs are dragged at an angle to the line of draught.• The tail is quite mellow, and concave too.Origin concave (1500-1600) Latin concavus, from com- ( → COM-) + cavus “hollow”
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