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.
The definition of defective is something or someone that is imperfect or that doesn't work properly. A door that does not latch correctly is an example of something that would be described as defective. 1  having a defect or defects; imperfect; faulty.  Gram.