Definition

Noun: * A white, crystalline, inorganic compound with the chemical formula ZrO₂. It is an oxide of the element zirconium, known for its high melting point, hardness, and chemical resistance. It is used in various industrial applications.

Usage

• As a material or substance: "Zirconium oxide" is used as a non-count noun to refer to the compound itself as a bulk material.
  • The crucible was lined with zirconium oxide to withstand the extreme heat.
  • The properties of zirconium oxide make it suitable for dental implants.

Examples

• The high refractive index of zirconium oxide makes it valuable in certain optical applications.
• Zirconium oxide ceramics are prized in engineering for their toughness and thermal stability.
• A layer of zirconium oxide can be applied as a protective coating on metal components.

Advanced Usage

• In materials science, "zirconium oxide" is often referred to by its mineral name, zirconia. The stabilized forms (e.g., yttria-stabilized zirconia) are critical for structural applications.
• In jewelry, cubic zirconia, a synthetic form of zirconium oxide, is a common diamond simulant.

Variants and Related Words

• Zirconia (n): A common synonym, especially in technical and commercial contexts.
  • The implant was made from yttria-stabilized zirconia.
• Zircon (n): A natural mineral (zirconium silicate) that is a primary source for obtaining zirconium and zirconium oxide.
  • The sand contained traces of zircon.

Synonyms

• Zirconia
• ZrO₂ (chemical formula)

Notes on Different Meanings

The term "zirconium oxide" has a single, specific scientific meaning referring to the chemical compound ZrO₂. It does not have common idiomatic or figurative uses.

Noun

1. a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes