GNU Collaborative International Dictionary of English

last match results

Found one definition

1.       
   osmium , n. [Gr. ὀσμή a smell, odor, akin to ὄζειν to smell. So named in allusion to the strong chlorinelike odor of osmic tetroxide. See Odor.] (Chem.) A rare metallic element of the platinum group with atomic number 76. It is found native as an alloy in platinum ore, and in iridosmine. It is a hard, infusible, bluish or grayish white metal, and the heaviest substance known. Its tetroxide is used in histological experiments to stain tissues. Symbol Os. Atomic weight 190.2. Specific gravity 22.477.
   1913 Webster
   +PJC