[1] : The Collaborative International Dictionary of English v.0.48

concenter \concen"ter\, concentre \concen"tre\, v. i. imp. 
   p. p. concentered or concentred; p. pr  vb. n.
   concenteringor concentring. f. concentrer, fr. l. con-
   + centrum center. see center, and cf. concentrate
   to come to one point; to meet in, or converge toward, a
   common center; to have a common center.
   1913 webster

         god, in whom all perfections concenter.  --bp.
                                                  beveridge.
   1913 webster concenter
see also:
concentered concentred concentering concentring center concentrate 

[2] : The Collaborative International Dictionary of English v.0.48

concenter \concen"ter\, concentre \concen"tre\, v. t.
   to draw or direct to a common center; to bring together at a
   focus or point, as two or more lines; to concentrate.
   1913 webster

         in thee concentering all their precious beams.
                                                  --milton.
   1913 webster

         all is concentered in a life intense.    --byren.
   1913 webster

[3] : WordNet (r) 2.0

concenter
     v : bring into focus or alignment; to converge or cause to
         converge; of ideas or emotions syn: concentre, focalize,
          focalise, focus
see also:
concentre focalize focalise focus 

Concenter >> C Words
Concenter, definition of term: Concenter
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