a portion of a ferromagnetic material where the magnetic moments are aligned with one another because of interactions between molecules or atoms.
noun, Computers. 1. a cylinder coated with magnetic material, on which data and programs can be stored.
- Magnetic epoch
noun 1. (geology) a geologically long period of time during which the magnetic field of the earth retains the same polarity. The magnetic field may reverse during such a period for a geologically short period of time (a magnetic event)
noun 1. . noun 1. an imaginary line on the earth’s surface, near the equator, at all points on which there is no magnetic dip Also called aclinic line magnetic equator A line connecting all points on the earth’s surface at which the magnetic field is parallel to the Earth’s surface. A balanced magnetic needle […]
noun 1. a region of space near a magnet, electric current, or moving charged particle in which a magnetic force acts on any other magnet, electric current, or moving charged particle. 2. . noun 1. a field of force surrounding a permanent magnet or a moving charged particle, in which another permanent magnet or moving […]