- The system of glands that release their secretions (hormones) directly into the circulatory system. In addition to the endocrine glands, included are the chromaffin system and the neurosecretory systems.
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
- Collective designation for those tissues capable of secreting hormones.
Definition from: NCI Thesaurus via Unified Medical Language System at the National Library of Medicine
See also Understanding Medical Terminology.