(Science: anatomy) Situated in front of any transverse axis in the body of an animal; anterior; cephalic; especially, in front, or on the anterior, or cephalic (that is, radial or tibial) side of the axis of a limb.
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... fingers (intercalary hexadactyly). Far and away the most frequent form of hexadactyly is ulnar (postaxial) hexadactyly. Next comes radial (preaxial) hexadactyly. And far and away the rarest form of hexadactyly is intercalary hexadactyly. Hexadactyly in itself can be innocuous, absolutely ...
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