- variant of ferri-: ferroconcrete. In chemical terminology, the meanings of ferri- and ferro- are specialized to correspond to ferric and ferrous.
- indicating a property of iron or the presence of ironferromagnetism; ferromanganese
- indicating the presence of iron in the divalent stateferrocyanide Compare ferri-
before vowels ferr-, word-forming element indicating the presence of iron, from Latin ferro-, comb. form of ferrum “iron,” possibly of Semitic origin, via Etruscan [Klein].
- Ferrous iron:ferroprotein.