Keywords: contraction (shrinkage), contract (get smaller)
Sign Definition
As a Noun
                                            1.  Of a pupil, the process of becoming smaller and narrower. English = contraction.
                                          
                                          
                                        As a Verb or Adjective
                                            1.  Of a pupil, to become smaller and narrower. English = contract.
                                          
                                          
                                         
                  
                      