the part of the placenta derived from the decidua basalis. See also: placenta. Synonym(s): maternal placenta, placenta uterina
ma·ter·nal part of pla·cen·ta
(mă-tĕr'năl pahrt plă-sen'tă) The part of the placenta derived from the basal layer or decidua basalis of the endometrium. Synonym(s): pars uterina placentae [TA] .