pituitary

n. small endocrine gland attached to the brain that secretes hormones

adj. of or pertaining to the pituitary gland

The pituitary gland, or hypophysis, is an endocrine gland about the size of a pea that sits in a small, bony cavity (sella turcica) covered by a dural fold (sellar diaphragm) at the base of the brain. The pituitary fossa, in which the pituitary gland sits, is situated in the sphenoid bone in the middle cranial fossa at the base of the brain.
See more at Wikipedia.org...

Pituitary /pi·tu·i·tary/ 1. hypophysial. 2. pituitary gland ; see under gland. anterior pituitary adenohypophysis. [more]Pituitary - Community and Resources

Noun
1. the master gland of the endocrine system; located at the base of the brain
(synonym) pituitary gland, pituitary body, hypophysis
(hypernym) endocrine gland, endocrine, ductless gland
(part-holonym) diencephalon, interbrain, betweenbrain, thalmencephalon
(part-meronym) hypophyseal stalk
Adjective
1. of or relating to the pituitary gland; "pituitary hormone"
(pertainym) pituitary gland, pituitary body, hypophysis
2. having abnormal size with overgrown extremities resulting from abnormal pituitary secretion; "a protruding acromegalic jaw"; "a pituitary dwarf"
(synonym) acromegalic
(similar) unshapely

(a.)
Secreting mucus or phlegm; as, the pituitary membrane, or the mucous membrane which lines the nasal cavities.
  

(a.)
Of or pertaining to the pituitary body; as, the pituitary fossa.