boron

/'bɔ:rɔn/

Thân thiện

A scientist carefully measures a sample of boron powder in the laboratory.

Definition

1. Noun:
   • A chemical element: "boron" is a trivalent metalloid element. It occurs naturally in both a hard black crystalline form and as a yellow or brown powder. Its chemical symbol is B, and its atomic number is 5.

Usage Examples

• Noun:
  • Boron is an essential micronutrient for plant growth.
  • The semiconductor industry uses boron to dope silicon wafers.
  • Pure boron is a poor conductor of electricity at room temperature.

Advanced Usage

• "Boron nitride": A compound of boron and nitrogen with a structure similar to graphite or diamond, known for its high thermal conductivity and lubricating properties.

  • Boron nitride is often used as a high-temperature lubricant.

• "Boron carbide": An extremely hard ceramic material, used in tank armor and bulletproof vests.

  • The vehicle's plating was reinforced with boron carbide.

Variants and Related Words

• Boric (adj): Relating to or containing boron.

  • Boric acid is a common antiseptic.

• Borax (n): A sodium borate mineral and a common source of boron compounds.

  • Borax is often used in laundry detergents.

Synonyms

• Element 5: Referring to its atomic number.
• B: Its chemical symbol.

Related Phrases and Compounds

• Boron group: Refers to Group 13 of the periodic table, which includes boron, aluminum, gallium, indium, and thallium.

  • Aluminum is the most abundant element in the boron group.

• Boron deficiency: A condition in plants where a lack of boron causes specific growth abnormalities.

  • The apple trees showed signs of boron deficiency.

Học thuật

Noun

1. a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder

Từ đồng nghĩa

• B
• atomic number 5