osmium


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Related to osmium: osmium tetroxide

osmium

 (Os) [oz´me-um]
a chemical element, atomic number 76, atomic weight 190.2. (See Appendix 6.)

os·mi·um (Os),

(oz'mē-ŭm),
A metallic element of the platinum group, atomic no. 76, atomic wt. 190.2.
[G. osmē, smell, because of the strong odor of the tetroxide]

osmium

/os·mi·um/ (Os) (oz´me-um) chemical element, at. no. 76.
osmium tetroxide  a fixative used in preparing histologic specimens, OsO4.

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.

os·mi·um

(oz'mē-ŭm)
A metallic element of the platinum group, atomic no. 76, atomic wt. 190.2.

osmium (zˑ·mē·m),

n 1. a hard, gray, toxic metallic element; the symbol is Os.
2. a homeopathic trituration of metallic osmium.

os·mi·um

(Os) (oz'mē-ŭm)
A metallic element of the platinum group.

osmium (Os) (oz´mēəm),

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.
References in periodicals archive ?
The distillate received by Osann smelled like an osmium compound and it turned dark blue at the addition of gallnut tincture.
Osmium tetroxide has a pungent smell and comes from the Greek word for 'stench'.
With mCloud Osmium, we are empowering Service Providers to compete head-to-head with Amazon Web Services, offering a solution that has a low-barrier to entry and out-performs AWS, while still providing the scalability necessary to grow your business.
Comets travel much faster than asteroids, so they have more energy on impact, which in combination with their being partially ice means they are not contributing as much iridium or osmium," he added.
You'd need an asteroid of about 5km diameter to contribute that much iridium and osmium.
Methods have also been developed to enhance the yield of backscatlered electron signals, and thus brightness, using high atomic number substances as tracers or stains, including osmium Os[0.
For wht reason is the metal osmium a world record breaker?
1 M cacodylate, postfixed in 1% S-collidine-buffered osmium tetroxide (1 hr), and then dehydrated in graded ethanol washes.
has been granted a patent for a color effect material that is comprised of a platelet-shaped substrate sequentially encapsulated with a first layer which is highly reflective to light directed thereon and which is selected from the group consisting of silver, gold, platinum, palladium, rhodium, ruthenium, osmium, iridium and alloys.
The coverslips were washed with phosphate-buffered saline before being postfixated in 1% osmium tetroxide for 1 h.
Police swooped on suspected plotters in London and the West Midlands before the chemical, osmium tetroxide, was obtained.