Exocrine is a term referring to glands that secrete their products via a duct. This is as opposed to endocrine glands that release their products directly into the circulatory system via the capillary network pervading the gland itself. Enodcrine glands are the defining elements of the endocrine system.
Typical exocrine glands include sweat glands, salivary glands, and many glands of the digestive system.