septumpellucidum

septum pel·lu·ci·dum (pə-lo͞oʹsĭ-dəm) n. pl. septa pel·lu·ci·da (-də)

A thin membrane of nervous tissue that forms the medial wall of the lateral ventricles in the brain.

  [New Latin sēptum pellūcidum: sēptum, septum + Latin pellūcidum, neuter of pellūcidus, transparent.]

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