deuterium: meaning, definition, pronunciation and examples
C2Technical / Scientific
Quick answer
What does “deuterium” mean?
A stable isotope of hydrogen with one proton and one neutron in its nucleus, often called 'heavy hydrogen'.
Audio
Pronunciation
Definition
Meaning and Definition
A stable isotope of hydrogen with one proton and one neutron in its nucleus, often called 'heavy hydrogen'.
The element or isotope used in various scientific and industrial applications, including nuclear reactors, chemical tracing, and as a potential fuel for fusion energy.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or usage differences. Pronunciation differs slightly (see IPA).
Connotations
Identical technical/scientific connotations in both regions.
Frequency
Used with equal frequency in relevant scientific contexts in both the UK and US. Virtually absent from general discourse.
Grammar
How to Use “deuterium” in a Sentence
[deuterium] + [noun] (deuterium nucleus)[adjective] + [deuterium] (enriched deuterium)[verb] + [deuterium] (to separate deuterium)[preposition] + [deuterium] (with deuterium)Vocabulary
Collocations
Examples
Examples of “deuterium” in a Sentence
adjective
British English
- The deuterium content of the sample was analysed.
American English
- The deuterium concentration in the sample was analyzed.
Usage
Meaning in Context
Business
Rare, except in specific industries like nuclear energy or analytical chemistry supply.
Academic
Common in chemistry, physics, nuclear engineering, and earth sciences textbooks and research.
Everyday
Extremely rare. Would only appear in popular science contexts.
Technical
The primary register. Used precisely in nuclear physics, spectroscopy, chemical synthesis, and hydrology.
Vocabulary
Synonyms of “deuterium”
Vocabulary
Antonyms of “deuterium”
Watch out
Common Mistakes When Using “deuterium”
- Mispronouncing as 'deuterium' (like 'deuteronomy').
- Using 'deuterium' to refer to a different element.
- Confusing deuterium (stable) with radioactive tritium.
FAQ
Frequently Asked Questions
No, deuterium is a stable isotope. Its radioactive counterpart is tritium (hydrogen-3).
In very small quantities, it is not immediately harmful, but replacing a significant proportion of the body's water with heavy water disrupts cellular processes and is toxic.
It occurs naturally in trace amounts (about 0.015%) in all water on Earth and was formed during the Big Bang.
The standard symbol is ²H or D (as in D₂O for heavy water).
A stable isotope of hydrogen with one proton and one neutron in its nucleus, often called 'heavy hydrogen'.
Deuterium is usually technical / scientific in register.
Deuterium: in British English it is pronounced /djuːˈtɪə.ri.əm/, and in American English it is pronounced /duːˈtɪr.i.əm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “N/A”
Learning
Memory Aids
Mnemonic
Deuterium is 'heavier' hydrogen; remember 'D' for 'double' the mass (one proton + one neutron).
Conceptual Metaphor
N/A (Highly technical term with little metaphorical extension.)
Practice
Quiz
What is the primary chemical difference between deuterium and the most common form of hydrogen?