Final answer:
Acromegaly is the condition caused by growth hormone excess in adulthood, leading to the enlargement of bones in the face, hands, and feet.
Step-by-step explanation:
The condition caused by growth hormone excess in adulthood is acromegaly. Acromegaly is a disorder that results in the enlargement of bones in the face, hands, and feet in individuals who have stopped growing. It is caused by the overproduction of growth hormone (GH) in adulthood.