<synset id="n05742962" type="n">
<lex_filenum>09<lex_filenum/>
<word lex_id="0">chorionic villus sampling<word/>
<word lex_id="0">chorionic villus biopsy<word/>
<pointer refs="n05740929">Hypernym<pointer/>
<def>a prenatal test to detect birth defects at an early stage of pregnancy<def/>
<def>tissue from the chorionic villi is assayed<def/>
<synset/>