Definition of "ferrite" [ferrite]

• Any of a group of nonmetallic, ceramiclike, usually ferromagnetic compounds of ferric oxide with other oxides, especially such a compound characterized by extremely high electrical resistivity and used in computer memory elements, permanent magnets, and various solid-state devices. Also called ferrate. (noun)
• Iron that has not combined with carbon, occurring commonly in steel, cast iron, and pig iron below 910°C. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Some strontium (10%) is used to make special magnets called ferrite ceramic magnets."
• "First of all, use what's called the ferrite bead on your wired headset."
• "It was established in 1935 to commercialize "ferrite," a key material in electronics and magnetics."