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: Webster's Revised Unabridged Dictionary (1913)