Primary

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:

    “The traditional American husband and father had the responsibilities—and the privileges—of playing the role of primary provider. Sharing that role is not easy. To yield exclusive access to the role is to surrender some of the potential for fulfilling the hero fantasy—a fantasy that appeals to us all. The loss is far from trivial.”
    —Faye J. Crosby (20th century)

    “A fact is a proposition of which the verification by an appeal to the primary sources of our knowledge or to experience is direct and simple. A theory, on the other hand, if true, has all the characteristics of a fact except that its verification is possible only by indirect, remote, and difficult means.”
    —Chauncey Wright (1830–1875)

    “Parental attitudes have greater correlation with pupil achievement than material home circumstances or variations in school and classroom organization, instructional materials, and particular teaching practices.”
    —Children and Their Primary Schools, vol. 1, ch. 3, Central Advisory Council for Education, London (1967)