sinistrality
noun
sin·is·tral·i·ty
ˌsin-ə-ˈstral-ət-ē
plural sinistralities
: 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
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Merriam-Webster unabridged
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