Hypertext Webster Gateway: "osmium"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Osmium \Os"mi*um\, n. [Gr. ? a smell, odor, akin to ? 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, 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
191.1. Specific gravity 22.477.
From WordNet (r) 1.7 (wn)
osmium
n : a hard brittle blue-gray or blue-black metallic element that
is one of the platinum metals; the heaviest metal known
[syn: {Os}, {atomic number 76}]
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