medial cuneiform bone, the largest of three cuneiform bones of the foot, situated on the medial side of the tarsus, between the scaphoid bone and the first metatarsal. It serves as the attachment for various ligaments, the tendons of the tibialis anterior, and the peroneus longus. It articulates with the scaphoid, the intermediate cuneiform, and the first and second metatarsals. Also called internal cuneiform bone.
