R0335600 (ro͞o-bĭj′ə-nəs) also ru·big·i·nose(-nōs′)adj. Rust-colored; reddish-brown.[Latin rūbīginōsus, from rūbīgō, rūbīgin-, rust, from rōbus, red; see reudh- in Indo-European roots.]
rubiginous
(ruːˈbɪdʒɪnəs) adj (Colours) rust-coloured[C17: from Latin rūbīginōsus, from rūbīgō rust, from ruber red]