2. (noun)primary, primary feather, primary quill one of the mainflight feathers projecting along the outer edge of a bird's wing
3. (noun)primary (astronomy) a celestial body (especially a star) relative to other objects in orbit around it
4. (noun)primary coil, primary winding, primary coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuit "current through the primary coil induces current in the secondary coil"
5. (adj)primary of firstrank or importance or value; direct and immediate rather than secondary "primary goals"; "a primary effect"; "primary sources"; "a primary interest"
6. (adj)primary not derived from or reducible to something else; basic "a primary instinct"
7. (adj)chief(a), main(a), primary(a), principal(a), master(a) most important element "the chief aim of living"; "the main doors were of solid glass"; "the principal rivers of America"; "the principal example"; "policemen were primary targets"; "the master bedroom"; "a master switch"
8. (adj)elementary, elemental, primary of or being the essential or basicpart "an elementary need for love and nurturing"