PLACENTAE

PLACENTA

placenta

(noun) the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus

placenta

(noun) that part of the ovary of a flowering plant where the ovules form

Source: WordNet® 3.1


Noun

placentae

plural of placenta

Source: Wiktionary


PLACENTA

Pla*cen"ta, n.; pl. L. Placentæ, E. Placentas. Etym: [L., a cake, Gr.

1. (Anat.)

Definition: The vascular appendage which connects the fetus with the parent, and is cast off in parturition with the afterbirth.

Note: In most mammals the placenta is principally developed from the allantois and chorion, and tufts of vascular villi on its surface penetrate the blood vessels of the parental uterus, and thus establish a nutritive and excretory connection between the blood of the fetus and that of the parent, though the blood itself does not flow from one to the other.

2. (Bot.)

Definition: The part of a pistil or fruit to which the ovules or seeds are attached.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

25 November 2024

ONCHOCERCIASIS

(noun) infestation with slender threadlike roundworms (filaria) deposited under the skin by the bite of black fleas; when the eyes are involved it can result in blindness; common in Africa and tropical America


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