1. chorionic villus sampling a prenatal test to detect birth defects at an early stage of pregnancy; tissue from the chorionic villi is assayed
  2. chorionic villus biopsy a prenatal test to detect birth defects at an early stage of pregnancy; tissue from the chorionic villi is assayed
  3. chorionic villus one of the tiny villi that stick out of the fetal chorion and combine with the mother's uterine tissue to form the placenta
  4. random sampling the selection of a random sample
  5. stratified sampling the population is divided into subpopulations (strata) and random samples are taken of each stratum
  6. proportional sampling the population is divided into subpopulations (strata) and random samples are taken of each stratum
  7. acceptance sampling a statistical procedure for accepting or rejecting a batch of merchandise or documents; involves determining the maximum number of defects discovered in a sample before the entire batch is rejected
  8. representative sampling the population is divided into subpopulations (strata) and random samples are taken of each stratum
  9. monofocal lens implant a lens with a single focus that is used after cataract surgery to provide clear distance vision
  10. compelling capable of arousing and holding the attention
  11. chronic leukemia slowly progressing leukemia
  12. chronic glossitis glossitis with atrophy of tongue tissue
  13. accommodating lens implant a lens implant containing a hinge that allows for both near and far vision (thus mimicking the natural lens of a young person)
  14. corn campion European annual having large trumpet-shaped reddish-purple flowers and poisonous seed; a common weed in grainfields and beside roadways; naturalized in America
  15. Convolvulus scammonia twining plant of Asia Minor having cream-colored to purple flowers and long thick roots yielding a cathartic resin
  16. multifocal lens implant a type of lens implant that contains several rings with a common center and adjusts for near or far vision; the eye is in focus for near and far vision simultaneously
  17. chronic glaucoma glaucoma caused by blockage of the canal of Schlemm
  18. chronic myelocytic leukemia chronic leukemia characterized by granular leukocytes
  19. candlepin bowling a bowling game using slender bowling pins
  20. Greenwich Village a mainly residential district of Manhattan