magnetic field

noun

: the portion of space near a magnetic body or a current-carrying body in which the magnetic forces due to the body or current can be detected

Examples of magnetic field in a Sentence

Recent Examples on the Web

Sunspots are associated with strong magnetic fields that prevent hot plasma from rising from within the sun. —Paul Smaglik, Discover Magazine, 24 Apr. 2025

The Earth's magnetic field guides the electrons so that the aurora forms two ovals centered around the magnetic poles. —Ross Rosenfeld, MSNBC Newsweek, 22 Apr. 2025

Occasionally, the magnetic field’s north and south poles swap completely—a natural phenomenon that has taken place about 180 times in Earth’s history. —Margherita Bassi, Smithsonian Magazine, 21 Apr. 2025

These satellites measure the solar wind’s speed and magnetic intensity, allowing forecasters to calculate how the solar wind will affect Earth’s magnetic field. —Jamie Carter, Forbes.com, 20 Apr. 2025

Word History

First Known Use

1845, in the meaning defined above

Rhymes for magnetic field

• afield
• airfield
• annealed
• appealed
• brownfield
• coalfield
• concealed
• congealed
• cornfield
• downfield
• goldfield
• hayfield

Kids Definition

magnetic field

noun

: the portion of space near a magnetic body or a body carrying an electric current within which magnetic forces due to the body or current can be detected

Medical Definition

magnetic field

noun

: the portion of space near a magnetic body or a current-carrying body in which the magnetic forces due to the body or current can be detected

the magnetic field of the heart