1. A rare polyvalent metallic element of the platinum group; it is found associated with platinum
   - ruthenium, Ru

Type of: metal, metallic element

• unrip
• unripe
• unripened
• unrivaled
• unrivalled
• unroll
• unromantic
• unromantically
• unroofed
• unrouged
• unrounded
• unruffled
• unruliness
• unruly
• unsaddle
• unsaddled
• unsafe
• unsafely
• unsaid
• unsalable
• unsalaried
• unsaleable
• unsalted
• unsanctification
• unsanctified