adjective: 1. Covered with iron. 2. Inflexible, unbreakable, or indisputable.
- indubitable Definition: (adjective) Too obvious to be doubted. Synonyms: veritable, undeniable, indisputable, irrefutable, unquestionable, incontrovertible, unarguable, incontestable. Usage: In the course of the day they saw indubitable signs that the buffalo had been roaming there in great numbers. Discuss
- corrode Definition: (verb) Cause to deteriorate due to the action of water, air, or an acid. Synonyms: rust, eat. Usage: Nothing can be a stronger proof of the malignant quality of the air than that the rust will immediately corrode both the iron and brass if they are not carefully covered with straw. Discuss
- farinaceous Definition: (adjective) Composed of or covered with particles resembling meal in texture or consistency. Synonyms: grainy, granular, gritty, coarse-grained, mealy. Usage: My husband's cooking efforts have left a farinaceous residue in my frying pan that I do not look forward to cleaning. Discuss
- cummingtonite noun: A mineral, otherwise known as magnesium iron silicate hydroxide.