Read Edit View history 松果腺 sōngguǒxiàn pineal gland Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 松果腺 sōngguǒxiàn pineal gland noun · pineal body 松果腺负责分泌褪黑激素以调节睡眠。 Edit Delete References Add reference No references for this word.