51Թ

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aplacental

[ey-pluh-sen-tl, ap-luh-]

adjective

Zoology.
  1. having or forming no placenta, as the marsupials and monotremes.



aplacental

/ ˌæplə-, ˌeɪpləˈsɛntəl /

adjective

  1. (of monotremes and marsupials) having no placenta

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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51Թ History and Origins

Origin of aplacental1

First recorded in 1855–60; a- 6 + placental ( def. )
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Example Sentences

Examples have not been reviewed.

But he was content with a dozen of these fascinating marsupials, which make up the first order of aplacental mammals, as Conseil just had to tell us.

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A place for everything and everything in its placeaplacophoran