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olefine

C2
UK/ˈəʊləfiːn/US/ˈoʊləfɪn/

technical, scientific

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Definition

Meaning

An unsaturated hydrocarbon containing one or more carbon-carbon double bonds (especially an alkene).

Any member of the homologous series of alkenes, or, more broadly, any compound characterized by a carbon-carbon double bond.

Linguistics

Semantic Notes

In strict chemical nomenclature, 'olefin' is more common; 'olefine' is an older, now less frequent variant. The term is primarily used in organic chemistry and petrochemical industries.

Dialectal Variation

British vs American Usage

Differences

The spelling 'olefin' is standard in both varieties, with 'olefine' being a dated British variant. Both terms are used interchangeably in technical contexts.

Connotations

Conveys a technical, industrial, or chemical context. No regional connotative differences.

Frequency

Extremely low frequency in general language. Usage is almost exclusively confined to chemistry, petrochemical engineering, and materials science.

Vocabulary

Collocations

strong
ethylenepropylenecatalystpolymerizationproduction
medium
lighthighersaturatedaromaticconversion
weak
variouscertainspecificcomplex

Grammar

Valency Patterns

production of + olefineconversion to + olefineolefine + polymerizationolefine + derivative

Vocabulary

Synonyms

Strong

ethylene (for ethene)propylene (for propene)

Neutral

alkene

Weak

unsaturated hydrocarbonvinyl compound (for specific types)

Vocabulary

Antonyms

alkanesaturated hydrocarbonparaffin

Phrases

Idioms & Phrases

  • “No common idioms”

Usage

Context Usage

Business

Used in reports from the petrochemical and plastics industries, e.g., 'olefine production capacity.'

Academic

Standard term in organic chemistry textbooks and research papers on hydrocarbon reactivity.

Everyday

Virtually never used.

Technical

Core term in chemical engineering, polymer science, and refinery operations.

Examples

By Part of Speech

verb

British English

  • The feedstock was olefined in the cracker.

American English

  • The process olefins the hydrocarbon mixture.

adverb

British English

  • The compound reacts olefinically.

American English

  • The polymer forms olefinically.

Examples

By CEFR Level

B2
  • The chemist identified an olefine in the mixture.
C1
  • The plant's new catalyst significantly improved the selectivity for light olefines like ethylene and propylene.
  • Olefine metathesis is a key reaction in modern organic synthesis for constructing complex molecules.

Learning

Memory Aids

Mnemonic

Think 'OLEFINE' -> 'OIL' + 'FINE' -> Fine, refined oil products often come from olefines.

Conceptual Metaphor

Often conceptualized as a 'building block' (for polymers) or a 'reactive unit' (in chemical synthesis).

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • Do not confuse with 'олифа' (olifa - linseed oil, a finish). The Russian term is 'олефин' (olefin).

Common Mistakes

  • Misspelling as 'olephin' or 'olefine' (the latter is dated but acceptable). Using it as a general term for plastic.

Practice

Quiz

Fill in the gap
The cracker unit is designed to maximize yield, particularly ethylene and propylene.
Multiple Choice

What is the primary characteristic of an olefine?

FAQ

Frequently Asked Questions

Yes, in modern chemical nomenclature, 'alkene' is the preferred systematic term. 'Olefine' is an older, synonymous term still used in industrial contexts.

Almost exclusively in technical literature related to petroleum refining, polymer chemistry, and organic synthesis.

It is a dated British English variant. The standard spelling in both British and American English for the last several decades has been 'olefin'.

Polyethylene plastic, one of the most common plastics, is made by polymerizing the olefine ethylene.