Eruginous

[Fr. erugineux; Lat. æruginosus, from arugo, rust of copper, from as, æris, copper.] Resembling the rust of copper or bra ; of the nature or color of verdigris; rusty; as, "ferreous and eruginous earths." Browne. Erun'da, n. The name given in Oriental countries to the seed of the castor-oil plant. Eruption, (e-rup's hon,) n. [Fr.; from Lat. eruptio. See RUPTURE. A breaking or bursting out or forth; a sudden or violent emi ion; explosion; outburst; sudden rushing or sallying forth; as, the eruption of Mount Vesuvius. A sudden hostile excursion. (Med.) A breaking out of pimples or pustules on the skin; pimples; pustules; blotches; rash.