Primary or primaries may refer to:

Arts, entertainment, and media

Music

Groups and labels

Primary (band) Primary were an Australian electronic rock band which formed in 1995 the Fonti brothers: Jamie on keyboards and Sean on bass guitar (both ex- Caligula), and Connie Mitchell on lead vocals. According to Australian musicologist, Ian McFarlane, t ...

, from Australia *

Primary (musician) Choi Dong-hoon (born January 31, 1983), better known by the stage name Primary, is a South Korean hip hop musician and record producer. Formerly an artist under Amoeba Culture, he established his own record label PAKTORY Company on April 22, ...

, hip hop musician and record producer from South Korea * Primary Music, Israeli record label

Works

* ''Primary'' (album) by Rubicon (2002) * "Primary" (song) by The Cure * "Primary", song by Spoon from the album ''

Telephono ''Telephono'' is the debut studio album by the indie rock band Spoon. It was released on April 23, 1996, by Matador, then re-released in a two-disc package with the ''Soft Effects'' EP in 2006 by Merge Records. "Idiot Driver" had previously appe ...

Other uses in arts, entertainment, and media

* Primaries or primary beams, in E. E. Smith's science-fiction series ''

Lensman The ''Lensman'' series is a series of science fiction novels by American author E. E. "Doc" Smith. It was a runner-up for the 1966 Hugo award for Best All-Time Series, losing to the ''Foundation'' series by Isaac Asimov. Plot The series begins ...

'' * ''Primary'' (film), American political documentary (1960)

Computing

* PRIMARY, an

X Window selection Selections, cut buffers, and drag-and-drop are the mechanisms used in the X Window System to allow a user to transfer data from one window to another. Selections and cut buffer are typically used when a user selects text or some other data in a wi ...

Primary data storage Computer data storage is a technology consisting of computer components and recording media that are used to retain digital data. It is a core function and fundamental component of computers. The central processing unit (CPU) of a computer ...

, computer technology used to retain digital data * Primary server, main server on the server farm

Education

* Primary education, the first stage of compulsory education *

Primary FRCA The Primary FRCA is a postgraduate examination in anaesthesia, more fully called the Primary Examination of the Diploma of Fellowship of the British Royal College of Anaesthetists (RCoA). Trainee anaesthetists in the United Kingdom are required ...

, academic examination for anaesthetists in the U.K. *

Primary school A primary school (in Ireland, the United Kingdom, Australia, Trinidad and Tobago, Jamaica, and South Africa), junior school (in Australia), elementary school or grade school (in North America and the Philippines) is a school for primary e ...

, school providing primary education

Mathematics

* ''p''-group of prime power order *

Primary decomposition In mathematics, the Lasker–Noether theorem states that every Noetherian ring is a Lasker ring, which means that every ideal can be decomposed as an intersection, called primary decomposition, of finitely many '' primary ideals'' (which are relate ...

into primary ideals *

Primary ideal In mathematics, specifically commutative algebra, a proper ideal ''Q'' of a commutative ring ''A'' is said to be primary if whenever ''xy'' is an element of ''Q'' then ''x'' or ''y'n'' is also an element of ''Q'', for some ''n'' > 0. Fo ...

s, concept in commutative algebra *

Primary number In mathematics, a prime power is a positive integer which is a positive integer exponentiation, power of a single prime number. For example: , and are prime powers, while , and are not. The sequence of prime powers begins: 2, 3, 4, 5, 7, 8, 9, ...

, positive integer power of a prime number

Politics

* Primary election, election by which a political party selects and nominates a candidate * Primary vote, the total of

first-preference votes In certain ranked-voting systems, a first-preference vote (or first preference, 1st preference, or primary vote) is the individual voter's first choice amongst (possibly) many. In certain ranked systems such as Instant-Runoff Voting or Single T ...

in the Australian electoral system

Science and mechanics

Primary (astronomy) A primary (also called a gravitational primary, primary body, or central body) is the main physical body of a gravitationally bound, multi-object system. This object constitutes most of that system's mass and will generally be located near the syst ...

, the larger of two co-orbiting bodies *

Primary (chemistry) Primary is a term used in organic chemistry to classify various types of compounds (e.g. alcohols, alkyl halides, amines) or reactive intermediates (e.g. alkyl radicals, carbocations). {{clear See also * Secondary (chemistry) * Tertiary (ch ...

, term used in organic chemistry * Primary, the oldest period in the

Geologic time scale The geologic time scale, or geological time scale, (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochr ...

(obsolete) * Primary, a stage in a thermonuclear explosive *

Primary circuit A transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits. A varying current in any coil of the transformer produces a varying magnetic flux in the transformer's ...

, electrical circuit in a transformer that receives current, as opposed to secondary circuit *

Primary field In theoretical physics, a primary field, also called a primary operator, or simply a primary, is a local operator in a conformal field theory which is annihilated by the part of the conformal algebra consisting of the lowering generators. From the ...

, type of field in conformal field theory *

Primary mirror A primary mirror (or primary) is the principal light-gathering surface (the objective) of a reflecting telescope. Description The primary mirror of a reflecting telescope is a spherical or parabolic shaped disks of polished reflective meta ...

, principal light-gathering surface of a reflecting telescope * Primary

power line An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy across large distances. It consists of one or more uninsulated electrical cables (commonly multiples of three for three-p ...

, electric power transmission line fed to or from a transformer *

Primary feathers Flight feathers (''Pennae volatus'') are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird; those on the wings are called remiges (), singular remex (), while those on the tai ...

, flight feathers attached to the manus ("hand") in the wings of birds *

Primary color A set of primary colors or primary colours (see spelling differences) consists of colorants or colored lights that can be mixed in varying amounts to produce a gamut of colors. This is the essential method used to create the perception of a ...

Other uses

Primary (LDS Church) The Primary (formerly the Primary Association) is a children's organization and an official organization within the Church of Jesus Christ of Latter-day Saints (LDS Church). It acts as a Sunday school organization for the church's children (a ...

, a children's Sunday School organization *

(born 1983), South Korean * Primary data (or raw data), a term for data collected from a source * Primary Flight Training, in the U.S. Navy *

Primary source In the study of history as an academic discipline, a primary source (also called an original source) is an artifact, document, diary, manuscript, autobiography, recording, or any other source of information that was created at the time under ...

, original materials * Primary

disease A disease is a particular abnormal condition that negatively affects the structure or function of all or part of an organism, and that is not immediately due to any external injury. Diseases are often known to be medical conditions that a ...

, a disease that is due to a root cause of illness