释义 |
aplacentalenUK
a·pla·cen·tal A0366000 (ā′plə-sĕn′tl)adj. Having no placenta, as marsupials and monotremes.aplacental (ˌeɪpləˈsɛntəl; ˌæplə-) adj (Zoology) (of monotremes and marsupials) having no placentaThesaurusAdj. | 1. | aplacental - having no placenta; "monotremes and marsupials are aplacental mammals"placental - pertaining to or having or occurring by means of a placenta; "all mammals except monotremes and marsupials are placental mammals" |
aplacentalenUK
aplacental [a″plah-sen´t'l] having no placenta.a·pla·cen·tal (ā'pla-sen'tăl), Without a placenta; denoting the monotremes (which lay eggs and have no placenta) and the marsupials (which have a transitory simple yolk-sac placenta).aplacental (ā′plə-sĕn′tl)adj. Having no placenta, as marsupials and monotremes.aplacentalenUK Related to aplacental: ovoviviparous, viviparousAntonyms for aplacentaladj having no placentaAntonyms |