Pineal
/ˈpɪn.i.əl/noun
Relating to the pineal gland, a small endocrine gland in the brain that helps regulate circadian rhythms.
Did you know?René Descartes called the pineal gland the brain’s point of contact between the material body and the immaterial soul, helping inspire its modern mystical “third-eye” symbolism.
Etymological Timeline
Proto-Indo-European
PIE
*pīno-
“Pine tree; a reconstructed root associated with resinous evergreen trees”
Ancient Greek
Greek
πίτυς (pítus)
“Pine tree”
Classical Latin
Latin
pīnus
“Pine tree”
Classical Latin
Latin
pīnea
“Pine cone; feminine form derived from pīnus”
17th Century
New Latin
pinealis
“Pine-cone-shaped; anatomical term referring to the form of the pineal gland”
Modern English
English
pineal
“Relating to the pineal gland”