convex lens definition, convex lens meaning | English dictionary

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convex

  

      adj  
1    curving or bulging outwards  
2      (Physics)   having one or two surfaces curved or ground in the shape of a section of the exterior of a sphere, paraboloid, ellipsoid, etc.  
a convex lens     
3      (Maths)   (of a polygon) containing no interior angle greater than 180°  
      vb  
4    tr   to make convex,   (Compare)        concave  
     (C16: from Latin convexus vaulted, rounded)  
  convexly      adv  


concavo-convex  
      adj  
1    having one side concave and the other side convex  
2    (of a lens) having a concave face with greater curvature than the convex face  
   Compare       convexo-concave       2  
convexo-convex  
      adj   (esp. of a lens) having both sides convex; biconvex  
plano-convex  
      adj   (of a lens) having one side convex and the other side plane  
English Collins Dictionary - English Definition & Thesaurus  
See also:

convexly, convey, convexity, cone

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"Collins English Dictionary 5th Edition first published in 2000 © HarperCollins Publishers 1979, 1986, 1991, 1994, 1998, 2000 and Collins A-Z Thesaurus 1st edition first published in 1995 © HarperCollins Publishers 1995"