depleted uranium
C1Technical, Academic, Military, Political, News
Definition
Meaning
Uranium that has had most of the easily fissionable isotope uranium-235 removed, leaving primarily uranium-238.
A dense, slightly radioactive heavy metal used in military applications for armor-piercing ammunition and vehicle armor due to its high density.
Linguistics
Semantic Notes
The term combines the process ('depleted') with the material ('uranium'), creating a compound noun with a very specific technical reference. It inherently carries strong connotations of modern warfare, military technology, and associated environmental/health controversies.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Both varieties use the identical term. Spelling conventions (e.g., armour/armor) may appear in surrounding text but not in the compound itself.
Connotations
Identical strong military/controversial connotations in both varieties.
Frequency
Frequency is similar, appearing almost exclusively in military, scientific, political, and news reporting contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
[verb] + depleted uranium: use, fire, contain, tip with, manufacture fromdepleted uranium + [verb]: penetrates, contaminates, remains, poses (a risk)depleted uranium + [noun]: munitions, rounds, armourVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[None specific to this compound term]”
Usage
Context Usage
Business
Rare, except in defence industry contracting or environmental cleanup reports.
Academic
Common in physics, materials science, environmental science, military history, and public health journals.
Everyday
Very rare; encountered almost solely in news reports about warfare or military technology.
Technical
The primary register. Used precisely in military, nuclear, and ballistic engineering contexts.
Examples
By Part of Speech
verb
British English
- The shells were tipped with depleted uranium.
- They decided to phase out the use of munitions that deplete uranium in this manner.
American English
- The rounds are tipped with depleted uranium.
- The military has depleted uranium to create these penetrators.
adverb
British English
- [No standard adverbial use]
American English
- [No standard adverbial use]
adjective
British English
- Depleted-uranium munitions have been controversial.
- The depleted-uranium core provides the mass.
American English
- Depleted-uranium ammunition is very dense.
- The tank has depleted-uranium armor plating.
Examples
By CEFR Level
- This metal is very heavy.
- Some bullets are made with a very hard metal.
- Depleted uranium is used in some military weapons because it is so dense.
- The use of depleted uranium in warfare is debated due to health risks.
- International NGOs are campaigning for a ban on munitions containing depleted uranium, citing long-term environmental contamination.
- The forensic analysis confirmed that the crater contained trace elements consistent with depleted uranium penetrators.
Learning
Memory Aids
Mnemonic
Imagine a uranium battery that's been USED UP ('depleted') of its powerful charge, but the heavy, dense metal CASE is left over and is used to make very hard bullets.
Conceptual Metaphor
WASTE PRODUCT AS WEAPON (the leftover, 'useless' material from nuclear fuel processing is repurposed into a conventional weapon).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating 'depleted' as 'истощённый' in a human energy sense; the standard Russian equivalent is 'обеднённый уран'.
- Do not confuse with 'обогащённый уран' (enriched uranium), which is its opposite.
Common Mistakes
- Misspelling as 'depleated uranium'.
- Using as a countable noun (e.g., 'a depleted uranium') – it is uncountable.
- Confusing it with 'enriched uranium' (used for nuclear reactors/weapons).
Practice
Quiz
What is the primary technical reason for using depleted uranium in military applications?
FAQ
Frequently Asked Questions
No, it is only slightly radioactive—about 60% less so than natural uranium. Its primary hazard is chemical toxicity, similar to other heavy metals like lead.
It is a byproduct of the uranium enrichment process. The isotope U-235, used for nuclear fission, is removed ('depleted'), leaving behind U-238.
Its use is not specifically banned by any universal treaty, but its use and post-conflict effects are highly controversial and subject to debate under laws governing weapons and environmental protection.
No. It cannot sustain a nuclear chain reaction and is therefore not used as fuel in standard nuclear reactors or in nuclear weapons. It is a conventional, not a nuclear, weapon material.