placentals From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounAny animal that is a member of the Placentalia Related wordsSynonymstransplacentaleutherianeutherian mammalplacental mammalabruptionmonotremeschordatesfaunaspsittacosauruseukaryotephylaarchosaurphylogeniesaustralopithecineslineageshabilis References Wiktionary — placentals Wikipedia — placentals