Noun: pineal gland
- A small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin
"The pineal gland helps regulate sleep-wake cycles";
- pineal body, epiphysis cerebri, epiphysis
Derived forms: pineal glands
Type of: ductless gland, endocrine, endocrine gland
Encyclopedia: Pineal gland