Wordnet polsko-angielski 
                         (mammals having a placenta
all mammals except monotremes and marsupials) 
placental, placental mammal, eutherian, eutherian mammal 
synonim: ssak łożyskowy
 (mammals having a placenta
all mammals except monotremes and marsupials) 
placental, placental mammal, eutherian, eutherian mammal 
synonim: ssak łożyskowy