Definition

1. Noun:
   • A radioactive isotope of hydrogen: Tritium is a form of hydrogen whose atoms have one proton and two neutrons in the nucleus, making them about three times heavier than the most common hydrogen atoms (protium). It is unstable and decays radioactively.

Usage

• Tritium is used primarily in scientific, industrial, and military applications.
• It is often discussed in the contexts of nuclear physics, fusion energy research, and as a radioactive tracer.
• In everyday language, it is a specialized scientific term.

Examples

• Noun:
  • The laboratory uses tritium for its fusion experiments.
  • The watch dial glows in the dark because it contains a small amount of tritium.
  • Tritium is produced in nuclear reactors.

Advanced Usage

• "Tritium dating": A technique used in hydrology and oceanography to trace the movement of water and determine the age of recent groundwater.
  • Scientists used tritium dating to study the flow of the aquifer.
• "Tritium breeding": A process in nuclear fusion reactor designs where tritium fuel is produced from other materials, like lithium.
  • A key challenge for fusion power is achieving efficient tritium breeding.

Variants and Related Words

• Tritiated (adj): Describing a compound in which one or more hydrogen atoms have been replaced by tritium atoms.
  • The researchers studied the reaction using tritiated water.
• Triton (n): The nucleus of a tritium atom, consisting of one proton and two neutrons.

Synonyms

• Hydrogen-3: The formal scientific designation for tritium, indicating its atomic mass number.
• T: A common symbolic abbreviation for tritium in chemical and nuclear equations (e.g., T₂O for tritiated water).

Related Phrases and Compounds

• Tritium leak: An accidental release of tritium gas or tritiated material.
  • The facility was shut down after a minor tritium leak was detected.
• Tritium target: A material containing tritium used as a target in particle accelerators or for neutron production.
  • The experiment required a new tritium target.

Noun

1. a radioactive isotope of hydrogen; atoms of tritium have three times the mass of ordinary hydrogen atoms