æləˈkeɪʃən əˈlɔt.mɛnt æsɪɡˈneɪʃən (computer science) the assignment of particular areas of a magnetic disk to particular data or instructions the act of distributing by allotting or apportioning; distribution according to a plan the apportionment of seats in the House of Representatives is based on the relative population of each state a share set aside for a specific purpose