pineal
noun [ C ] uk/ˈpɪn.i.əl/ us/ˈpɪn.i.əl/ (also pineal gland, /ˈpɪn.i.əl ˌɡlænd/ /ˈpɪn.i.əl ˌɡlænd/)
anatomy specialized （大脑中的）松果体
an organ in the brain that produces a hormone called melatonin
The pineal produces its hormone melatonin only during the dark. 松果体只在夜间产生褪黑激素。
pineal
adjective uk/ˈpɪn.i.əl/ us/ˈpɪn.i.əl/
anatomy specialized （大脑）松果体的;与松果体有关的
in or on the pineal, or relating to the pineal
a pineal tumour 松果体肿瘤
pineal dysfunction 松果体功能障碍