Pineal Gland

**Semantic type:** Body Part, Organ, or Organ Component

**Definition:** A small endocrine gland in the brain, situated beneath the back part of the corpus callosum, that secretes melatonin.

**Synonyms:** - GLAND, PINEAL - PINEAL GLAND - Pineal - Pineal - Pineal Body - Pineal Body - Pineal gland - Pineal structure (body structure) - corpus pineale - glandula pinealis - pineal body - pineal body - pineal gland - pineal gland - pineal organ