osmium
/'ɔzmiəm/
Definition
- Noun:
- A chemical element: Osmium is a hard, brittle, bluish-gray or bluish-black metallic element. It is one of the platinum group metals and is the densest naturally occurring element known.
Usage
- Osmium is used primarily as a noun to refer to the chemical element with the symbol Os and atomic number 76.
- It is typically discussed in scientific contexts such as chemistry, metallurgy, and materials science.
Examples
- Noun:
- Osmium is often alloyed with other platinum metals to make very hard, durable materials.
- The density of osmium is about twice that of lead.
Advanced Usage
- "Osmium tetroxide": A common and highly toxic compound of osmium, used in organic chemistry as an oxidizing agent and in electron microscopy as a stain.
- Osmium tetroxide is handled with extreme care in the laboratory due to its toxicity.
Variants and Related Words
- Osmic (adj): Relating to or containing osmium.
- The osmic acid solution was prepared for the experiment.
Synonyms
- Element 76: Referring to its atomic number.
- Platinum group metal: A categorical synonym, as osmium belongs to this group of six elements.
Notes
- Osmium has no associated phrasal verbs or idioms in common English usage, as it is a technical/scientific term.
Noun
-
a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
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