Body Substance
amniotic fluid Audio
am·ni·ot·ic flu·id [ am-nee-ah-tik floo-id ]
Subclass of:
Fluids and Secretions; Fetus
Definitions related to amniotic fluid:
  • A clear, yellowish liquid that envelopes the FETUS inside the sac of AMNION. In the first trimester, it is likely a transudate of maternal or fetal plasma. In the second trimester, amniotic fluid derives primarily from fetal lung and kidney. Cells or substances in this fluid can be removed for prenatal diagnostic tests (AMNIOCENTESIS).
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • Amniotic cavity fluid which is produced by the amnion and fetal lungs and kidneys.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • 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.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
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