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National Cancer Institute Thesaurus
Last uploaded:
July 2, 2026
| Id | http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C13188
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C13188
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|---|---|
| Preferred Name | Amniotic Fluid |
| Definitions |
The fluid within the amniotic cavity which surrounds and protects the developing embryo. It is initially produced by the amnion and then later by the lungs and kidneys. The amount at term normally varies from 500 to 2000 ml.
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| Synonyms |
Human Amniotic Fluid
Liquor Amnii
AMNIOTIC FLUID
FLUID, AMNIOTIC
Amniotic fluid
Amniotic Fluid
amniotic fluid
Waters (Amniotic Fluid)
Aqua Amnii
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| Type | http://www.w3.org/2002/07/owl#Class |
All Properties
| label | Amniotic Fluid
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|---|---|
| prefixIRI | Thesaurus:C13188
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| code | C13188
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| DEFINITION | The fluid within the amniotic cavity which surrounds and protects the developing embryo. It is initially produced by the amnion and then later by the lungs and kidneys. The amount at term normally varies from 500 to 2000 ml.
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| ALT_DEFINITION | The fluid within the amniotic cavity which surrounds and protects the developing embryo. (NCI)
Amniotic fluid is a bodily fluid consisting of watery liquid surrounding and cushioning a growing fetus within the amnion. It allows the fetus to move freely without the walls of the uterus being too tight against its body. Buoyancy is also provided. The composition of the fluid changes over the course of gestation. Initially, amniotic fluid is similar to maternal plasma, mainly water with electrolytes. As the fetus develops, proteins, carbohydrates, lipids, phospholipids originating from the lungs, fetal cells, and urea are deposited in the fluid.
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| Is_Value_For_GDC_Property | |
| Legacy Concept Name | Amniotic_Fluid
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| Contributing_Source |
CDISC
FDA
GDC
UBERON
mCode
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| xRef | UBERON:0000173
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| FULL_SYN |
Human Amniotic Fluid
Liquor Amnii
AMNIOTIC FLUID
FLUID, AMNIOTIC
Amniotic fluid
Amniotic Fluid
amniotic fluid
Waters (Amniotic Fluid)
Aqua Amnii
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| UMLS_CUI | C0002638
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| Maps_To | Amniotic Fluid
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| Preferred_Name | Amniotic Fluid
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| type | |
| subClassOf | |
| Concept_In_Subset |
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| Semantic_Type | Body Substance
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