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villi
(redirected from villus)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.15 sec.
villi: see digestive system digestive system, in the animal kingdom, a group of organs functioning in digestion and assimilation of food and elimination of wastes. Virtually all animals have a digestive system.
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Both amniocentesis and another procedure called chorionic villus sampling, in which doctors pluck bits of the placenta, isolate fetal cells that can reveal many genetic problems in an unborn baby with near certainty.
If the technique is adopted more widely, it could see a decrease in the number of women subjected to far more invasive procedures such as amniocentesis and chorion villus sampling (CVS) which respectively carry a 1% and 2% risk of miscarriage.
Chorionic villus sampling, to detect genetic abnormalities in the embryo or fetus in the first trimester.
 
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