- corpus pineale
- glandula pinealis
- pineal body
- pineal organ
- A light-sensitive neuroendocrine organ attached to the roof of the third ventricle of the brain. The pineal gland secretes melatonin, other biogenic amines, and neuropeptides.
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
- A small body that arises from the roof of the third ventricle and is enclosed by the pia mater and that functions primarily as an endocrine gland that produces melatonin -- called also pineal, pineal body, pineal organ.
Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.
- A tiny organ in the cerebrum that produces melatonin.
National Cancer Institute
See also Understanding Medical Terminology.