Aggregation

The term aggregation may refer to:
 * In statistics and social science aggregation means combining statistics from different entities to higher entities.
 * Aggregate demand, in economics, combining entities into a single entity which represent them.
 * Schooling, in biology, a collection of animals of the same size and body orientation, often cruising in the same direction; applied to fish.
 * In cardiovascular physiology, refers to the accumulation of platelets to the site of a wound to form a platelet plug or a thrombus.
 * Aggregation, in object-oriented programming.
 * Route aggregation, in computer networking
 * Aggregation (internet), the process of combining multiple web feeds.
 * In business and economics, aggregation is the concentration of a good, service, business functions, or market power in the hands of a small concentrated group of companies, typically by purchasing assets or by mergers and acquisitions.
 * In television broadcasting, the merging of several license areas into a single area, allowing competition between broadcasters. For its application in Australia, see List of Australian television channels.
 * In content publishing, the ability to combine content from any number of licensed or unlicensed sources into a common venue or distribution channel.
 * Agrégation, in French-speaking countries, higher-level competitive examinations for teachers and professors.
 * Particle aggregation, in materials science, a physical phenomenon.
 * In civil engineering and the earth sciences, aggregation produces soil structure through flocculation and weak cementation.
 * Link aggregation, in computer networking, utilizing multiple physical NICs as a single logical interface; "trunking".
 * Aggregate analysis, in computer science, especially in analysis of algorithms, refers to a technique used in Amortized Analysis.
 * Aggregation, in veterinary epidemiology, is an important factor in the population dynamics of host-macroparasite, is relevant in stabilizing the dynamics toward an equilibrium coexistence.