osmium /os·mi·um/ (Os) (oz´me-um) chemical element, at. no. 76.
osmium (Os)
osmium (
zˑ·mē·
m),
osmium (Os) (oz´mē
m),
osmium tetroxide a fixative used in preparing histologic specimens, OsO4.
os·mi·um ( z m - m)n. Symbol Os A hard metallic element, found in small amounts in osmiridium and platinum ores. Atomic number 76. |
osmium (Os)
[oz′mē·əm]
Etymology: Gk, osme, odor
a hard, grayish, pungent-smelling metallic element. Its atomic number is 76; its atomic mass is 190.2. Used to produce alloys of extreme hardness, it is highly toxic and is slowly converted to the highly volatile, pungent-smelling, extremely toxic osmium tetroxide (OsO4) in air.
osmium (
zˑ·mē·m),n 1. a hard, gray, toxic metallic element; the symbol is Os.
2. a homeopathic trituration of metallic osmium.
2. a homeopathic trituration of metallic osmium.
osmium (Os) (oz´mē
m),n a hard, grayish, pungent-smelling metallic element. Its atomic number is 76 and its atomic weight is 190.2. It is used to produce alloys of extreme hardness and is highly toxic.
osmium
a chemical element, atomic number 76, atomic weight 190.2, symbol Os. See Table 6.
osmium tetroxide
a pathology stain and fixative; called also osmic acid.
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