septum
noun /ˈseptəm/
/ˈseptəm/
(plural septa
(anatomy /ˈseptə/
/ˈseptə/
)- a thin part that separates two hollow areas, for example the part of the nose between the nostrils
隔膜；（动物）隔片，隔壁 词源mid 17th cent.: from Latin septum, from sepire ‘enclose’, from sepes ‘hedge’.