| ferruginous | 1. Iron-bearing; associated with or containing iron. 2. Of the colour of iron rust. Origin: L. Ferrugineus, iron rust, rust-coloured (05 Mar 2000) |
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| ferruginous bodies | In the lungs, foreign inorganic or organic fibres coated by complexes of haemosiderin and glycoproteins, and believed to be formed by macrophages that have phagocytised the fibres. See: asbestos bodies. (05 Mar 2000) |