FERRUGINOUS Meaning of FERRUGINOUS in English [ fɛ'ru:dʒɪnəs ]■ adjective1》 containing iron oxides or rust. 2》 rust-coloured.OriginC17: from L. ferrugo , ferrugin- 'rust, dark red' + -ous . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004