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

Usually hidden by the glare of our star, the ethereal corona and its pale, wavering streams of plasma are shaped by the sun’s magnetic field. — Claire Cameron & Lee Billings, Scientific American, 12 Aug. 2026

These storms occur when eruptions from the sun, such as coronal mass ejections (CMEs), slam into Earth's magnetic field. — Daisy Dobrijevic, Space.com, 10 Aug. 2026

Everything the team knows about how fast the plasma is actually moving comes from the simulations rather than from the telescope, and the magnetic field driving the whole thing has never been measured directly at this scale. — Jacek Krywko, ArsTechnica, 7 Aug. 2026

This heat plays a major role in powering the flow of rocks in the mantle, which shapes everything from plate tectonics to Earth’s magnetic field. — James Dinneen, Quanta Magazine, 7 Aug. 2026

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