[TA] a knob at the tip of the long limb of the incus that articulates with the stapes. Synonym(s): processus lenticularis incudis [TA], lenticular apophysis, lenticular bone, orbicular bone, orbicular process, orbiculare, os orbiculare, os sylvii
os orbiculare
The tiny bone in the ear that becomes attached to the incus, forming the lenticular process.See also: os