The term "endocrine" refers to something related to or affecting the endocrine system. The endocrine system is a collection of glands that produce and secrete hormones, which are chemical messengers that regulate various functions in the body such as growth, metabolism, and reproduction. These hormones act on specific target cells within the body to maintain homeostasis or help the body respond to changes in its environment. The endocrine system is crucial for maintaining overall health and well-being, making any condition or disorder affecting it potentially serious.