Definitions
from The Century Dictionary.
- The Marsupialia or marsupial implacental mammals; one of the three subclasses of Mammalia, the other two being Ornithodelphia and Monodelphia.
from the GNU version of the Collaborative International Dictionary of English.
- noun plural (Zoöl.) The subclass of Mammalia which includes the marsupials. See
marsupialia .
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