cerium: meaning, definition, pronunciation and examples
Very LowScientific, Technical
Quick answer
What does “cerium” mean?
A chemical element with the symbol Ce and atomic number 58, a soft, silvery, ductile metal in the lanthanide series.
Audio
Pronunciation
Definition
Meaning and Definition
A chemical element with the symbol Ce and atomic number 58, a soft, silvery, ductile metal in the lanthanide series.
Primarily used in specialist contexts referring to the element itself, its compounds (e.g., cerium oxide), or materials containing it.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling is identical. Pronunciation may differ slightly (see IPA).
Connotations
None beyond its scientific reference.
Frequency
Equally rare and confined to technical contexts in both varieties.
Grammar
How to Use “cerium” in a Sentence
[Cerium] is used in [catalytic converters].[Cerium oxide] acts as a [polishing agent].Vocabulary
Collocations
Examples
Examples of “cerium” in a Sentence
adjective
British English
- The cerium‑based catalyst showed improved efficiency.
- A cerium‑doped phosphor emits a specific light.
American English
- The cerium-containing alloy was tested for durability.
- Cerium-coated glass resists scratching.
Usage
Meaning in Context
Business
Rare; only in specific industries like catalysis, glass polishing, or rare‑earth mining.
Academic
Used in chemistry, materials science, and geology papers.
Everyday
Virtually never used.
Technical
Standard term in chemistry, metallurgy, and industrial processes (e.g., 'cerium oxide for glass polishing').
Vocabulary
Synonyms of “cerium”
Watch out
Common Mistakes When Using “cerium”
- Misspelling as 'serium' or 'cereum'.
- Using it as a countable noun (e.g., 'a cerium').
FAQ
Frequently Asked Questions
No, the most common isotope of cerium (Ce-140) is stable and not radioactive.
Cerium is found in various minerals, most notably monazite and bastnäsite, which are sources of rare-earth elements.
A very common use is in the form of cerium(IV) oxide (cerium oxide) for polishing glass and as a catalyst in self-cleaning ovens and automotive catalytic converters.
It is important due to its unique chemical properties, particularly its ability to switch between +3 and +4 oxidation states, making it valuable in catalysis and certain high-tech applications.
A chemical element with the symbol Ce and atomic number 58, a soft, silvery, ductile metal in the lanthanide series.
Cerium is usually scientific, technical in register.
Cerium: in British English it is pronounced /ˈsɪə.ri.əm/, and in American English it is pronounced /ˈsɪr.i.əm/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of 'serious' science: CERium is a SERious (sounds similar) element used in high‑tech applications.
Conceptual Metaphor
N/A (highly technical term, not typically metaphorized).
Practice
Quiz
What is the atomic number of cerium?