pituitary \pitu"itary\, a. l. pituita phlegm, pituite: cf.
   f. pituitarie. anat.
   a secreting mucus or phlegm; as, the pituitary membrane, or
       the mucous membrane which lines the nasal cavities.
   b of or pertaining to the pituitary body; as, the pituitary
       fossa.
       1913 webster

   pituitary body or pituitary gland anat., a a small,
      somewhat cherry-shaped endocrine gland, situated in the
      pituitary fossa, and suspended from the base of the
      hypothalamus; the hypophysis; -- called also glandula
      pituitaria, and basilaris. it secretes th pituitary
      hormones: oxytocin; vasopresin; antidiuretic hormone;
      luteinizing hormone; somatotropins; prolactin; thyroid
      stimulating hormone; gonadotropins; adrenal corticotropin
      and other peptide hormones. it affects all hormonal
      functions, and is thus called the "master gland".

   pituitary fossa anat., the ephippium.
      1913 webster +pjc
see also:
pituitary body pituitary gland glandula pituitaria basilaris pituitary fossa