- biopsy, chorionic villi
- chorionic villus sampling
- A method for diagnosis of fetal diseases by sampling the cells of the placental chorionic villi for DNA analysis, presence of bacteria, concentration of metabolites, etc. The advantage over amniocentesis is that the procedure can be carried out in the first trimester.
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
See also Understanding Medical Terminology.