This is a medial projection from the apex of the long crus of the incus. It forms a flattened, oval, cartilage-covered surface that forms the synovial joint facet for the stapes.

Lenticular arises from the Latin word lentil that was the name for the small lens-like seeds from a leguminous plant. Process is a term used in anatomy to describe a projection on a bone. It comes from the Latin pro- meaning forward and cessus for gone. It is an old term that can be traced back to the writings of the early anatomist Celsus.

Processus lenticularis incudis