How to Use ferromagnetic in a Sentence

ferromagnetic

adjective
  • Though coins are partially made of nickel (which is ferromagnetic), there's not enough in US coins to work that way.
    — Korin Miller, Health.com, 9 June 2021
  • Any permanent magnet must have a ferromagnetic element, such as iron or cobalt.
    — IEEE Spectrum, 15 Nov. 2023
  • These ferromagnetic granules are situated in the inter-cell brain space.
    — Neuroskeptic, Discover Magazine, 4 June 2015
  • These are made of some type of ferromagnetic material like iron, nickel, alnico, or neodymium.
    — Rhett Allain, Wired, 31 Dec. 2021
  • During the mission, a servicer craft will release a target craft with a ferromagnetic docking plate and capture it using magnets.
    — Daniel Clery, Science | AAAS, 1 Dec. 2020
  • When the iron is cold, a movable permanent magnet in the switch is drawn to the ferromagnetic tip, closing the switch and sending power to the heating element.
    — IEEE Spectrum, 27 Oct. 2017
  • It’s based on the physics of ferromagnetic materials, which lose their magnetism when heated above a certain temperature, known as the Curie point.
    — IEEE Spectrum, 27 Oct. 2017
  • These parallel spins, in turn, would render the material ferromagnetic.
    — Michael Greshko, WIRED, 28 Jan. 2024
  • The researchers first used a tiny glass needle, its tip measuring only 10 microns across, to inject a single droplet of ferromagnetic fluid between the embryo’s cells.
    — Quanta Magazine, 27 Sep. 2018
  • Because the photons are emitted so close to the ferromagnetic material, that magnetism is enough to induce photon polarization.
    — IEEE Spectrum, 5 Sep. 2023
  • The body housed an onboard accelerometer to measure impact deceleration as well as a ferromagnetic ball so that the impactor could be dropped from varying heights via an electromagnet.
    — Jennifer Ouellette, Ars Technica, 6 Nov. 2023
  • That means it can be magnetized and then attracted or repelled by other magnetic materials (iron, for example, is ferromagnetic).
    — Justine Calma, The Verge, 10 Aug. 2023
  • But luckily, the indentation process also gave the device a ferromagnetic property.
    — IEEE Spectrum, 5 Sep. 2023
  • The only real danger is that posed by metal objects (specifically ferromagnetic ones), which in the presence of a strong magnetic field become deadly projectiles.
    — Neuroskeptic, Discover Magazine, 24 Feb. 2010
  • This behavior was unexpected because iron is a ferromagnetic substance, which is quite the opposite of a superconductor.
    — Ameya Paleja, Interesting Engineering, 30 Dec. 2025
  • There’s a reason why you’re told to remove all ferromagnetic metal objects before entering a room where an MRI machine is located.
    — Bruce Y. Lee, Forbes, 12 Feb. 2023
  • This novel method could make processing 1,000 times faster than modern ferromagnetic storage technologies.
    — Georgina Jedikovska, Interesting Engineering, 11 Mar. 2026
  • The rotor then spins because of a phenomenon called magnetic reluctance, which is the property that causes a ferromagnetic material to align itself with the lines of flux of a magnetic field.
    — IEEE Spectrum, 15 Mar. 2024
  • What that spacing does is provide a stable ferromagnetic structure in the crystal, which in turn promotes an inherent characteristic of the crystal called magnetic anisotropy.
    — IEEE Spectrum, 15 Nov. 2023
  • Magnetite is a ferromagnetic (iron-containing and magnetic) mineral.
    — Elizabeth Rayne, Ars Technica, 19 May 2024
  • This view was dramatically changed by the discovery that living cells have the ability to build nanocrystals of the ferromagnetic mineral magnetite – basically, tiny iron magnets.
    — Shinsuke Shimojo, Daw-An Wu, Discover Magazine, 18 Mar. 2019
  • In the mid-1960s, two physicists heralding from opposite sides of the globe independently derived a proof that explained why electrons should align and create a ferromagnetic state.
    — Marcus Woo, WIRED, 27 Jan. 2019
  • This is because at non-zero temperatures, thermal energy inevitably enters into a ferromagnetic material and excites the aligned electron spins.
    — Dexter Johnson, IEEE Spectrum, 26 Apr. 2017
  • The nanoscale spintronic oscillators are pillars composed of two ferromagnetic layers separated by a non-magnetic spacer.
    — IEEE Spectrum, 26 July 2017
  • By infusing rubber-like elastomers with ferromagnetic particles, the researchers 3D-printed an ultra-thin magnetic film that can be attached to origami structures.
    — Neetika Walter, Interesting Engineering, 20 Oct. 2025
  • Previous designs couldn’t pack enough ferromagnetic particles into the soft material to generate sufficient force.
    — Neetika Walter, Interesting Engineering, 20 Oct. 2025
  • Most of these toys are made of silicone, a plastic that should be unproblematic in the magnet, but to the surprise of those present, especially the woman being examined, this one did contain ferromagnetic material.
    — Michaela Maya-Mrschtik, Scientific American, 6 Aug. 2025
  • The team uses as a base a soft, flexible material (silicone rubber) embedded with ferromagnetic particles (a neodymium-iron-boron alloy) — little bits of stuff that react to magnetic fields.
    — Bill Andrews, Discover Magazine, 13 June 2018
  • The shape bears a striking resemblance to the B-H curve describing magnetization of ferromagnetic materials.
    — Aaron Shattuck, Scientific American, 17 Sep. 2024
  • The researchers believe this ferromagnetic property occurs because the indentations cause a strain on the layered material and modifies its energy landscape.
    — IEEE Spectrum, 5 Sep. 2023

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'ferromagnetic.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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