[sin′is trəl) -adjective          Latin - [sinistrālis]

                        one. of, pertaining to, or on the left side; left (opposed to dextral).        

                      two. to show higher creative tendencies due to brain hemispherical dominance. 

             three. preferring to use left foot or hand or eye;   "sinistral individuals exhibit  

           ....... dominance of the left hand and eye"