sinistrality [ sin-uh-stral-i-tee ]
1. the state or quality of having the left side or its parts or members different from and, usually, more efficient than the right side or its parts or members; left-handedness.
2. preference for using the left hand or side.
3. the state of being sinistral.
Origin: First recorded in 1850–55; sinistral + -ity
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