neu·ro·hy·poph·y·sis 
(nr′ō-hī-pŏfĭ-sĭs, -hĭ-, nyr′-)
(nr′ō-hī-pŏfĭ-sĭs, -hĭ-, nyr′-)n. pl. neu·ro·hy·poph·y·ses (-sēz′)
The posterior portion of the pituitary gland, having a rich supply of nerve fibers and releasing oxytocin and vasopressin.
neu′ro·hy′po·physe·al, neu′ro·hy′po·physi·al (-hī′pə-fĭzē-əl, -hĭp′ə-, -hĭ-pŏf′ə-sēəl) adj.