n. 基元；主翼羽, 比较原色（primary复数）

n a preliminary election where delegates or nominees are chosen

n one of the main flight feathers projecting along the outer edge of a bird's wing

n (astronomy) a celestial body (especially a star) relative to other objects in orbit around it

n coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuit