noun[mass noun] Medicine
A test made in early pregnancy to detect congenital abnormalities in the fetus, in which a tissue sample is taken from the villi of the chorion.
- Another prenatal test, called chorionic villus sampling, can diagnose most, but not all, of the same birth defects as amniocentesis.
- These options include amniocentesis, early amniocentesis, chorionic villus sampling, and ultrasound examination.
- Women at higher risk of carrying a baby with such conditions may opt for testing procedures like amniocentesis or chorionic villus sampling.
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Line breaks: chori|on¦ic vil¦lus sam|pling
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