Source : Webster's Revised Unabridged Dictionary (1913)

Pituitary \Pi*tu"i*ta*ry\, 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.

   {Pituitary body} or {gland} (Anat.), a glandlike body of
      unknown function, situated in the pituitary fossa, and
      connected with the infundibulum of the brain; the
      hypophysis.

   {Pituitary fossa} (Anat.), the ephippium.

Source : WordNet®

pituitary body
     n : the master gland of the endocrine system; located at the
         base of the brain [syn: {pituitary}, {pituitary gland}, {hypophysis}]