incretion

noun Physiology.

1. a substance, as a hormone, that is secreted internally.
2. the process of such secretion.

noun physiol

1. direct secretion into the bloodstream, esp of a hormone from an endocrine gland
2. the substance so secreted

n.

1. The process of internal secretion characteristic of endocrine glands.
2. The product of this process; a hormone.