| aplacental | (เอพละเซน'ทัล) adj. ไม่มีรก |
| aplacental | (adj) having no placenta, Ant. placental, Example: monotremes and marsupials are aplacental mammals |
| Aplacental | a. [ Pref. a- + placental. ] Belonging to the Aplacentata; without placenta. [ 1913 Webster ] |