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

FRBs are brief but intense blasts of radio waves currently thought to erupt from rapidly rotating dead stars with the universe's strongest magnetic fields, called magnetars. — Robert Lea, Space.com, 10 Sep. 2026

Planar coils simplify stellarator engineering Stellarators use magnetic fields to confine the extremely hot plasma required for fusion. — Atharva Gosavi, Interesting Engineering, 10 Sep. 2026

September is an ideal month for viewing the northern lights because the autumn equinox—which occurs on September 22—helps solar energy interact with Earth’s magnetic field. — Michele Laufik, Martha Stewart, 8 Sep. 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