ˌsinə̇ˈstraləd.ē, -lətē, -i noun
( -es )
1. : the quality or state of having the left side or one or more of its parts (as the hand or eye) different from and usually more efficient than the right or its corresponding parts ; also : left-handedness
dental societies don't keep track of sinistrality among their members — New Yorker
2. : the condition of being sinistral — used especially of a mollusk shell