noun Research performed in detail on a single individual, group, incident or community, as opposed to, for instance, a sample of the whole population.
noun A case used in a such research.
noun A very good example of something. .mw-parser-output .object-usage-tag{font-style:italic}.mw-parser-output .deprecated{color:var(--wikt-palette-grey-lime-8,olivedrab)}[with in]