- the first person known to have a particular disease or other medical condition in a population, especially the first patient in an epidemic known to have contracted the infection: The index patient did not immediately test positive, and consequently spread the virus for several days.
More Definitions
- PRESS BED (noun) Definition, Meaning & Examples
- B LYMPHOCYTE (noun) Definition, Meaning & Examples
- MYSIAN (noun) Definition, Meaning & Examples
- USHABTI (noun) Definition, Meaning & Examples
- RUSK (noun) Definition, Meaning & Examples
- INDIANA DUNES NATIONAL LAKESHORE (noun) Definition, Meaning & Examples