Primary may refer to:
- Primary (astronomy), the larger of two co-orbiting bodies
- Primary mirror, principal light-gathering surface of a reflecting telescope
- Primary (band), from Australia
- Primary circuit, electrical circuit in a transformer that receives current, as opposed to secondary circuit
- Primary election, an election by which a political party selects and nominates a candidate
- Power line, electric power transmission line fed to or from a transformer
- Primary (film), 1960 documentary
- Primary (LDS Church), children's Sunday School organization
- "Primary" (song), by The Cure
- Primary, the oldest period in the Geologic time scale (obsolete)
- "Primary", a song by Spoon from the album Telephono
- Primaries, remiges (wing feathers) in birds
- Primaries or primary beams, in E. E. Smith's science-fiction series Lensman
- The first stage in a thermonuclear explosive, may also be used alone in a lower-yield nuclear explosive, see nuclear weapon design
Read more about Primary: Mathematics, Gaming
Famous quotes containing the word primary:
“Anyone who has obeyed nature by transmitting a piece of gossip experiences the explosive relief that accompanies the satisfying of a primary need.”
—Primo Levi (1919–1987)
“But the doctrine of the Farm is merely this, that every man ought to stand in primary relations to the work of the world, ought to do it himself, and not to suffer the accident of his having a purse in his pocket, or his having been bred to some dishonorable and injurious craft, to sever him from those duties.”
—Ralph Waldo Emerson (1803–1882)
“A primary function of art and thought is to liberate the individual from the tyranny of his culture in the environmental sense and to permit him to stand beyond it in an autonomy of perception and judgment.”
—Lionel Trilling (1905–1975)