commissura habenularum
Also found in: Encyclopedia.
com·mis·sur·a ha·be·nu·la·'rum
[TA]the connection between the right and left habenular nuclei; the decussation of fibers of the two striae medullares, forming the dorsal portion of the peduncle of the pineal body.
Synonym(s): habenular commissure [TA], commissure of habenulae