Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun osmium
1 sense of osmium
Sense 1
osmium, Os, atomic number 76 -- (a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known)
=> metallic element, metal -- (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)