aplacental

American

[ey-pluh-sen-tl, ap-luh-] / ˌeɪ pləˈsɛn tl, ˌæp lə- /

adjective

Zoology.

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

aplacental British

/ ˌæplə-, ˌeɪpləˈsɛntəl /

adjective

(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

Etymology

Origin of aplacental

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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.

From Twenty Thousand Leagues Under the Sea by Walter, F. P.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023