one of many bones associated with the tarsus. See 2d cuneiform.
In physiology and zoology, the middle the three cuneiform bones regarding the tarsus, lying amongst the ectocuneiform therefore the entocuneiform. It's in unique relation because of the head regarding the second metatarsal bone. Also referred to as mesosplenoid.
Middle, as a cuneiform bone; with respect to the mesocuneiform.