Definition

Noun: * Radioactive waste: Useless, hazardous materials that contain radioactive substances and are left over as a byproduct after a nuclear or industrial process is completed. This waste emits ionizing radiation and requires special handling and disposal methods due to its potential danger to human health and the environment.

Usage

• This term is used as a non-count (mass) noun to refer to the general category of waste material.
• It is commonly discussed in contexts of nuclear power generation, medical treatments, scientific research, and national defense.
• It is often modified by adjectives describing its origin (e.g., , , , ) or its management (e.g., , , ).

Examples

• The safe long-term storage of radioactive waste is a major challenge for the nuclear industry.
• The laboratory has strict protocols for handling radioactive waste.
• The decommissioned facility was found to be contaminated with decades-old radioactive waste.

Advanced Usage

• "To dispose of radioactive waste": To get rid of or permanently store radioactive waste.
  • Scientists are researching safer methods to dispose of radioactive waste.
• "Radioactive waste management": The professional field and practices involved in handling, treating, transporting, and storing radioactive waste.
  • She specialized in radioactive waste management.

Variants and Related Words

• High-level waste (HLW): Highly radioactive waste, often from spent nuclear reactor fuel.
• Low-level waste (LLW): Radioactive waste that contains small amounts of short-lived radioactivity, such as from hospitals or labs.
• Spent nuclear fuel: Used fuel from a nuclear reactor, often categorized as high-level waste.
• Nuclear waste: A common synonym, though it sometimes refers more specifically to waste from nuclear fission reactors.

Synonyms

• Nuclear waste
• Radioactive material(s) (though this is a broader term that includes useful materials, not just waste)

Related Phrases

• Radioactive contamination: The unwanted presence of radioactive substances on surfaces, within solids, liquids, or gases.
• Half-life: A scientific term crucial to understanding radioactive waste, referring to the time required for half the atoms in a radioactive sample to decay.
• Geological repository: A deep underground facility designed for the permanent disposal of high-level radioactive waste.

Noun

1. useless radioactive materials that are left after some laboratory or commercial process is completed