prehallux

from The Century Dictionary.

• noun A kind of cartilaginous spur or calcar on the inner side of the foot of some batrachians, next to the hallux, commonly segmented in several pieces.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Anat.) An extra first toe, or rudiment of a toe, on the preaxial side of the hallux.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun anatomy An extra first toe, or rudiment of a toe, on the preaxial side of the hallux.