Dextral
a.-
Right, as opposed to sinistral, or left.
Dextral shell (Zoöl.),
a spiral shell the whorls of which turn from left right, or like the hands of a watch when the apex of the spire is toward the eye of the observer.
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a spiral shell the whorls of which turn from left right, or like the hands of a watch when the apex of the spire is toward the eye of the observer.