Primary Explained
Primary or primaries may refer to:
Arts, entertainment, and media
Music
Groups and labels
Works
Other uses in arts, entertainment, and media
- Primaries or primary beams, in E. E. Smith's science-fiction series Lensman
- Primary (film), American political documentary (1960)
Computing
Education
Mathematics
Politics
Science and mechanics
- Primary (astronomy), the larger of two co-orbiting bodies
- Primary (chemistry), term used in organic chemistry
- Primary, the oldest period in the Geologic time scale (obsolete)
- Primary, a stage in a thermonuclear explosive
- Primary circuit, electrical circuit in a transformer that receives current, as opposed to secondary circuit
- Primary field, type of field in conformal field theory
- Primary mirror, principal light-gathering surface of a reflecting telescope
- Primary power line, electric power transmission line fed to or from a transformer
- Primary feathers, flight feathers attached to the manus ("hand") in the wings of birds
- Primary color
Other uses
See also