INRO n.
A small closed receptacle or set of receptacles of hard material, as lacquered wood, iron, bronze, or ivory, used by the Japanese to hold medicines, perfumes, and the like, and carried in the girdle. It is usually secured by a silk cord by which the wearer may grasp it, which cord passes through an ornamental button or…
IRIDIUM n.
element, of the same group as platinum, which it much resembles, being silver-white, but harder, and brittle, and indifferent to most corrosive agents. With the exception of osmium, it is the heaviest substance known, its specific gravity being 22.4. Symbol Ir. Atomic weight 192.5.