thermobaric bomb

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Definition

Noun: A type of explosive weapon that utilizes a fuel-air mixture. It disperses a fine aerosol cloud of fuel (such as a powdered metal or flammable liquid) into the air, which then ignites to create a massive, sustained blast wave and extreme overpressure. Its destructive mechanism relies heavily on atmospheric oxygen.

Examples
  • The military used a thermobaric bomb to destroy the deeply entrenched bunker complex.
  • The blast from a thermobaric bomb is characterized by a prolonged high-pressure wave, causing severe damage to structures and internal organs.
  • Reports indicated the deployment of thermobaric bombs in the mountainous region.
Advanced Usage
  • Technical Context: Often discussed in military science and international humanitarian law due to its devastating effects in enclosed spaces like caves, tunnels, and urban buildings. The term is used to distinguish this weapon from conventional high-explosive (e.g., TNT) and nuclear ordnance.
  • Comparative Context: The destructive overpressure of a large thermobaric bomb is sometimes compared to that of a low-yield nuclear device, though without the radioactive fallout.
Variants and Related Words
  • Fuel-air explosive (FAE) (n): A broader category of weapons to which thermobaric bombs belong. All thermobaric bombs are FAEs, but not all FAEs are optimized for the sustained thermal/pressure effect implied by "thermobaric."
  • Vacuum bomb (n): A common informal synonym, referring to the weapon's effect of consuming the oxygen in the blast area.
  • Aerosol bomb (n): Another descriptive term focusing on the fuel dispersal mechanism.
Synonyms
  • Fuel-air explosive (FAE)
  • Vacuum bomb (informal)
  • Aerosol bomb
Related Phrases
  • Enhanced blast weapon: A technical phrase sometimes used interchangeably or to describe specific variants.
  • High-impulse thermobaric weapon: A more specific term emphasizing the powerful blast wave.
Notes on Meaning

The core meaning centers on the two-stage explosive process (dispersion then ignition) and its primary destructive effects: a blast overpressure that is longer in duration than conventional explosives and intense thermal radiation (heat). It is distinct from a "bunker buster," which is a penetrating weapon, though thermobaric warheads can be used against fortified positions.

Noun
  1. a bomb that uses a fuel-air explosive
    • a thermobaric bomb can create overpressures equal to an atomic bomb

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