pineal

/ˈpaɪniəl/
adjective
  1. Relating to the pineal gland, a small organ in the brain that produces melatonin and helps regulate sleep.
    • The pineal gland is sometimes called the 'third eye' because of its role in sensing light.
    • Doctors studied the pineal function in patients with sleep disorders.
    • Melatonin is the main hormone released by the pineal body.
noun
  1. The pineal gland.
    • The pineal is located deep in the center of the brain.
    • The pineal helps control your body's internal clock.
    • Some animals have a more developed pineal that can detect light directly.
What does "pineal" mean? | whatsthatwordmean | whatsthatwordmean