Cushing's syndrome is the result of the excessive production of corticosteroids by the adrenal glands. An overproduction of corticotropin (ACTH) - the hormone that controls the adrenal gland - by the pituitary gland, which stimulates the adrenal glands to produce corticosteroids, may be one cause. It is called Cushing's disease and the result of ACTH-secreting pituitary adenoma. Alt.
deficiency. a lack or shortage; a condition characterized by the presence of less than the normal or necessary supply or competence. color vision deficiency see color vision deficiency.
1. an insufficiency, shortage, or absence of something required or desired. 2. something that is required but is absent or in short supply. vb. (when: intr, often foll by in or for) to be deficient (in) or have need (of): to lack purpose.