Placenta Pla*cen"ta, n.; pl. L. {Placent[ae]}, E. {Placentas}. [L., a cake, Gr. ? a flat cake, from ? flat, fr. ?, ?, anything flat and broad.] 1. (Anat.) The vascular appendage which connects the fetus with the parent, and is cast off in parturition with the afterbirth. [1913 Webster]

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. [1913 Webster]

2. (Bot.) The part of a pistil or fruit to which the ovules or seeds are attached. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • placentae — pla·cen·ta || plÉ™ sentÉ™ n. organ that forms on the wall of the uterus during pregnancy and carries nourishment to a growing fetus while removing waste products …   English contemporary dictionary

  • placentae previae — pl of PLACENTA PREVIA …   Medical dictionary

  • placentae abruptio — ▪ pathology       premature separation of the placenta from its normal implantation site in the uterus. The placenta is the temporary organ that develops during pregnancy to nourish the fetus and carry away its wastes. Placentae abruptio occurs… …   Universalium

  • ablatio placentae — Véase abruptio placentae. Diccionario Mosby Medicina, Enfermería y Ciencias de la Salud, Ediciones Hancourt, S.A. 1999 …   Diccionario médico

  • abruptio placentae — Premature detachment of a normally situated placenta. * * * ab·rup·tio pla·cen·tae ə .brəp shē .ō plə sent (.)ē, tē .ō n, pl abruptio pla·cen·ta·rum .plas ən tar əm, tär or ab·rup·ti·o·nes placentarum shē .ō (.)nēz , tē .ō .nās premature… …   Medical dictionary

  • ablatio placentae — ab·la·tio pla·cen·tae a .blā sh(ē )ō plə sent (.)ē n ABRUPTIO PLACENTAE * * * abruptio placentae …   Medical dictionary

  • Ablatio placentae — Klassifikation nach ICD 10 O45 Vorzeitige Plazentalösung (Abruptio placentae) …   Deutsch Wikipedia

  • Abruptio placentae — Klassifikation nach ICD 10 O45 Vorzeitige Plazentalösung (Abruptio placentae) …   Deutsch Wikipedia

  • Extractum Placentae pro injectionibus — ЭКСТРАКТ ПЛАЦЕНТЫ ДЛЯ ИНЪЕКЦИЙ ( Extractum Placentae pro injectionibus ). Водный экстракт из консервированной на холоду плаценты человека. Стерильная бесцветная прозрачная или слегка опалесцирующая жидкость без осадка; рН 6,7 7,5. Стерилизуют при …   Словарь медицинских препаратов

  • abrupto placentae — desprendimiento prematuro de la placenta. Ablatio de placenta [ICD 10: O45.9]Ablatio de placenta [ICD 10: O45.9] imagen patológica [véase placentae] Diccionario ilustrado de Términos Médicos.. Alvaro… …   Diccionario médico

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