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  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.
Compare dextrality.

Origin of sinistrality

First recorded in 1850–55; sinistral + -ity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
sinistrality in Medicine


([object Object])
  1. Preference for the left hand in performing manual tasks; left-handedness.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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