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  1  definition  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Dextrin  \Dex"trin\,  n.  [Cf.  F.  dextrine,  G.  dextrin.  See 
  {Dexter}.]  (Chem.) 
  A  translucent,  gummy,  amorphous  substance,  nearly  tasteless 
  and  odorless,  used  as  a  substitute  for  gum,  for  sizing,  etc., 
  and  obtained  from  starch  by  the  action  of  heat,  acids,  or 
  diastase.  It  is  of  somewhat  variable  composition,  containing 
  several  carbohydrates  which  change  easily  to  their  respective 
  varieties  of  sugar.  It  is  so  named  from  its  rotating  the 
  plane  of  polarization  to  the  right  --  called  also  {British 
  gum},  {Alsace  gum},  {gommelin},  {leiocome},  etc  See 
  {Achro["o]dextrin},  and  {Erythrodextrin}.