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Of or pertaining to the right side

Left: The normally sinistral (left-handed) shell of Neptunea angulata, a species of sea snail (now extinct) found mainly in the Northern Hemisphere. Right: The normally dextral (right-handed) shell of Neptunea despecta, a similar species found mainly in the Southern Hemisphere.

Of or pertaining to the right side

Schematic illustration of the two strike-slip fault types. The view is of the Earth's surface from above.