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Meaning of sinistral

sin•is•tral

Pronunciation: (sin'u-strul), [key]
— adj.
  1. of, pertaining to, or on the left side; left (opposed to dextral).
  2. left-handed.
  3. (of certain gastropod shells) coiling counterclockwise, as seen from the apex.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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