osmium

/'ɔzmiəm/

Thân thiện

A scientist holds a small sample of osmium in a laboratory.

Definition

1. 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.

Học thuật

Noun

1. a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known

Từ đồng nghĩa

• Os
• atomic number 76