osmium

Definition of osmium

os´mi`um   Pronunciation: ǒz´mĭ`ŭm
n.1.(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.

Related Words

atomic number 76, metal, metallic element, Os
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Osculum
Osier
Osier bed
osier cornel
Osiered
Osiery
Osiris
Osmanli
Osmate
Osmaterium
Osmazome
Osmiamate
Osmiamic
Osmic
Osmic acid
Osmic tetroxide
Osmidrosis
Osmious
Osmious acid
osmite
-osmium-
osmogene
osmograph
osmometer
Osmometry
Osmose
osmosis
osmotic
osmotic pressure
Osmund
Osnaburg
Oso-berry
Osphradium
Osprey
Oss
Osse
Ossean
Ossein
Osselet
Osseous
Osseter
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