- one of the forms of pure metallic iron, having high magnetic permeability and occurring as a constituent of ordinary iron and steel
- any of various ceramic, magnetic materials with poor electrical conductivity, containing ferric oxide and another metallic oxide: used in recording tape and computer memories
- Geol. a grain, scale, or bit of red, brown, or yellow iron oxide in a rock
Origin of ferritefrom Classical Latin ferrum, iron + -ite
- 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 .
- Iron that has not combined with carbon, occurring commonly in steel, cast iron, and pig iron below 910°C.
- The interstitial solid solution of carbon in body-centered cubic iron.
- Any of a class of metal oxides which show ferrimagnetism; used in transformers, inductors, antennas, recording heads, microwave devices, motors and loudspeakers.
- (inorganic chemistry) The anion FeO22-, and any of the salts (formally derived from the unknown ferrous acid) derived from it.