ferromagnetism

noun

Etymology: Etymology tree substratebor. Old Latin *fersom Latin ferrum English ferro- Old French magnetebor. Pre-Greekbor.? Ancient Greek Μάγνης (Mágnēs) Ancient Greek μᾰ́γνης (mắgnēs)bor. Latin magnēsbor. Middle English magnete English magnet Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Indo-European *-mos Proto-Indo-European *-mós Ancient Greek -μός (-mós) Ancient Greek -ισμός (-ismós)der. English -ism English magnetism English ferromagnetism From ferro- + magnetism.

1. The phenomenon whereby certain substances can become permanent magnets when subjected to a magnetic field.