Definition of case-control in English:

case-control

adjective

Medicine
  • (attributive) designating a type of epidemiological study in which each individual having a particular disease or other attribute of interest is compared with a control who is a similar individual without the disease or attribute, typically in order to identify aetiological factors; belonging, relating to, or based on such a study.

Origin

1950s; earliest use found in The Lancet. Compare control.