pin·e·al
noun/paɪˈniːəl/
/paɪˈniːəl/
(also pineal gland)
(anatomy)- a small organ in the brain that releases a hormone
松果体；松果腺 Word Originlate 17th cent.: from French pinéal, from Latin pinea ‘pine cone’. The current anatomical usage refers to the shape of the gland.