periferií

Periferií is the instrumental singular form of periférie, the Czech word for periphery. The term denotes the outer part of a space or system, contrasted with its center or core. In everyday usage, periférie refers to the outer districts of a city, outlying areas of a country, or the edge of an organization.

In geography and urban planning, the periphery describes areas beyond the urban core, often with lower population density, different land use, and varying access to services. The relationship between center and periphery is a central theme in planning, transportation, and regional strategy, with policies aimed at promoting balanced development and strengthening connectivity.

In sociology and economics, core–periphery theory describes a structural hierarchy in which developed core regions concentrate capital and decision-making, while peripheral regions supply labor, resources, or markets controlled by cores. This framework is used to analyze international trade, regional inequality, and development policy, informing approaches to investment, infrastructure, and governance.

In biology and medicine, peripheral can refer to structures at the edge of an organ or body, as in peripheral nerves or peripheral circulation, highlighting contrasts with central components.

Language use and grammar notes: periferií appears after instrumental-case requiring prepositions, illustrating how the same root word changes form across grammatical cases in Czech.

See also: periphery, core–periphery model, suburbanization, peripheralization.