plural noun Mar·su·pi·on·ta \märˌsüpēˈäntə\

Definition of Marsupionta

in some classifications

  1. :  a subclass of mammals coextensive with the Prototheria and Metatheria and comprising all the nonplacental mammals

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Origin and Etymology of marsupionta

New Latin, from Marsupialia + Greek -onta (nominative neuter plural participial ending)

Seen and Heard

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feeling or affected by lethargy

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