placentae
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pluralof placenta.plural
The grammatical form denoting more than one person, place, thing, or idea.
placentanounthe organ in most mammals, formed in the lining of the uterus by the union of the uterine mucous membrane with the membranes of the fetus, that provides for the nourishment of the fetus and the elimination of its waste products.
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.
One point makes the above view more probable in Acropera than in other cases, viz. the presence of rudimentary placentae or testae, for I cannot hear that these have been observed in the male plants.
From More Letters of Charles Darwin — Volume 2 by Sir Francis Darwin
Yet when I call to mind the state of the placentae in A. luteola, I am astonished that they should produce ovules.
From More Letters of Charles Darwin — Volume 2 by Sir Francis Darwin
As I traced the placentae upwards, the ovules appeared, becoming gradually more abundant towards its apex.
From More Letters of Charles Darwin — Volume 2 by Sir Francis Darwin
Two placentae were expelled some time after the twins, and showed a membranous junction.
From Anomalies and Curiosities of Medicine by Walter L. (Walter Lytle) Pyle
In making longitudinal sections of the fertilised ovary before mentioned, I found the basal portion entirely destitute of ovules, their place being substituted by transparent cellular ramification of the placentae.
From More Letters of Charles Darwin — Volume 2 by Sir Francis Darwin