subchorial space

sub·cho·ri·al space

the part of the placenta adjacently beneath the chorionic plate; it joins with irregular channels to form the marginal lakes.
Synonym(s): subchorial lake

sub·cho·ri·al space

, subchorial lake (sŭb-kōr'ē-ăl spās, lāk)
The part of the placenta beneath the chorionic plate; it joins with irregular channels to form marginal lakes.