Active may refer to:

Music

* ''Active'' (album), a 1992 album by Casiopea *

Active Records Active Records was a record sublabel of RCA Records founded in 1980. The label focused mainly on heavy metal music. The label was dissolved in 1994. Bands * Anacrusis * Atheist * Budgie * Candlemass * Merciless * Destiny * Therion See also ...

, a record label

Ships

* ''Active'' (ship), several commercial ships by that name * HMS ''Active'', the name of various ships of the British Royal Navy * USCS ''Active'', a US Coast Survey ship in commission from 1852 to 1861 * USCGC ''Active'', the name of various ships of the US Coast Guard * USRC ''Active'', the name of various ships of the US Revenue Cutter Service * USS ''Active'', the name of various ships of the US Navy

Computers and electronics

Active Enterprises Active may refer to: Music * ''Active'' (album), a 1992 album by Casiopea * Active Records, a record label Ships * ''Active'' (ship), several commercial ships by that name * HMS ''Active'', the name of various ships of the British Royal ...

, a defunct video game developer *

Sky Active Sky Active was the brand name for interactive features on Sky Digital and was available in the UK and Ireland. It enabled a viewer to interact with TV content, respond to an advertisement or access internet-based services. History and techn ...

, the brand name for interactive features on Sky Digital available in the UK and Ireland *

Active (software) Active may refer to: Music * ''Active'' (album), a 1992 album by Casiopea * Active Records, a record label Ships * ''Active'' (ship), several commercial ships by that name * HMS ''Active'', the name of various ships of the British Royal ...

, software used for open publishing by Indymedia; see

Independent Media Center The Independent Media Center, better known as Indymedia, is an open publishing network of activist journalist collectives that report on political and social issues. Following beginnings during the 1999 Carnival Against Capital and 1999 Seatt ...

Sciences

Thermodynamic activity In chemical thermodynamics, activity (symbol ) is a measure of the "effective concentration" of a species in a mixture, in the sense that the species' chemical potential depends on the activity of a real solution in the same way that it would depen ...

, measure of an effective concentration of a species in a mixture. *

Activation Activation, in chemistry and biology, is the process whereby something is prepared or excited for a subsequent reaction. Chemistry In chemistry, "activation" refers to the reversible transition of a molecule into a nearly identical chemical or ...

, in chemistry the process whereby something is prepared for a subsequent reaction *

Active (pharmacology) In pharmacology, bioavailability is a subcategory of absorption and is the fraction (%) of an administered drug that reaches the systemic circulation. By definition, when a medication is administered intravenously, its bioavailability is 100%. H ...

, the fraction of a dose of unchanged drug that reaches systemic circulation

Other

Active, Alabama Active is an unincorporated community in Bibb County, Alabama, United States. History The community was located on the Mobile and Ohio Railroad The Mobile and Ohio Railroad was a railroad in the Southern U.S. The M&O was chartered in January a ...

, a community in the US * ''Active'', the original name of the early steam locomotive ''Locomotion'' No. 1 * "Actives", current members of

fraternities and sororities Fraternities and sororities are social organizations at colleges and universities in North America. Generally, membership in a fraternity or sorority is obtained as an undergraduate student, but continues thereafter for life. Some accept gradu ...

Active living Active living is a lifestyle that integrates physical activity into everyday routines, such as walking to the store or biking to work. Active living is not a formalized exercise program or routine, but instead means to incorporate physical acti ...

, a lifestyle characterized by frequent or various activities