ˌ ̷ ̷ ̷ ̷pə̇ˈtüətəˌrizəm, -pə.ˈtyü- noun
( -s )
Etymology: International Scientific Vocabulary hyper- + pituitar- (from pituitary ) + -ism
1. : excessive activity of the pituitary gland especially in the production of growth-regulating hormones — compare hypopituitarism
2. : a growth abnormality dependent on hyperpituitarism (as acromegaly and various gigantisms)