Noun

• S: (n) rose chestnut, ironwood, ironwood tree, Mesua ferrea (handsome East Indian evergreen tree often planted as an ornamental for its fragrant white flowers that yield a perfume; source of very heavy hardwood used for railroad ties)
• S: (n) ironwood (exceptionally tough or hard wood of any of a number of ironwood trees)
• S: (n) iron tree, iron-tree, ironwood, ironwood tree (a small slow-growing deciduous tree of northern Iran having a low domed shape)
• S: (n) Eastern hop hornbeam, ironwood, ironwood tree, Ostrya virginiana (medium-sized hop hornbeam of eastern North America)