nitrile
C2 / SpecialisedFormal / Technical / Scientific
Definition
Meaning
A type of synthetic organic compound containing the functional group -C≡N.
A strong, flexible synthetic rubber or plastic material made from polymers containing nitrile groups, particularly resistant to oils and fuels.
Linguistics
Semantic Notes
Primarily a technical chemistry term. In everyday contexts, often used metonymically to refer to 'nitrile rubber' or 'nitrile gloves'.
Dialectal Variation
British vs American Usage
Differences
No significant difference in technical meaning or usage.
Connotations
Neutral technical term in both varieties.
Frequency
Equally low frequency in general discourse, but familiar in specific industrial, medical, or chemical contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
nitrile + noun (rubber, gloves, compound)adjective + nitrile (synthetic, organic, aromatic)Vocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Used in procurement, e.g., 'We need to order more nitrile gloves for the laboratory.'
Academic
Common in chemistry papers, e.g., 'The nitrile was reduced to the corresponding amine.'
Everyday
Almost exclusively in reference to disposable gloves, e.g., 'These nitrile gloves are latex-free.'
Technical
Core term in organic chemistry and materials science for the functional group and polymers derived from it.
Examples
By Part of Speech
adjective
British English
- The nitrile-based seal offers superior resistance.
- A nitrile-modified polymer was synthesised.
American English
- The nitrile-based seal offers superior resistance.
- A nitrile-modified polymer was synthesized.
Examples
By CEFR Level
- The mechanic wore blue nitrile gloves to protect his hands.
- These gloves are made from nitrile, not latex.
- Nitrile rubber is preferred in the automotive industry for fuel hoses due to its oil resistance.
- The hydrolysis of the nitrile produced a carboxylic acid.
- Acrylonitrile butadiene nitrile copolymerisation yields a material with excellent chemical stability.
- The researchers identified the unknown compound as an aromatic nitrile via IR spectroscopy.
Learning
Memory Aids
Mnemonic
Think: NI (as in the chemical symbol for Nickel) + TRILE (sounds like 'trial'). A 'Nickel trial' could be a test involving a strong, metal-like synthetic material.
Conceptual Metaphor
STRENGTH IS CHEMICAL RESISTANCE (e.g., 'nitrile's toughness against oils').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'нитрил' (the correct transliteration) and 'нитрат' (nitrate), which is a different chemical. Avoid the false friend 'нитрильный', which is not standard Russian; use 'нитриловый' (e.g., нитриловые перчатки).
Common Mistakes
- Pronouncing it as /ˈnɪtrɪl/ (like 'nitric' without the 'c').
- Using 'nitrile' as a countable noun for individual gloves ('a nitrile') instead of 'a nitrile glove'.
- Confusing nitrile (organic compound) with nitride (inorganic compound containing N³⁻).
Practice
Quiz
What is the core chemical feature of a nitrile?
FAQ
Frequently Asked Questions
Nitrile gloves are superior for people with latex allergies and generally offer better resistance to oils, acids, and certain chemicals. However, the 'better' choice depends on the specific application.
The nitrile functional group can occur in some rare natural compounds, but the 'nitrile' referred to in everyday items like gloves is a fully synthetic rubber polymer.
Yes, /ˈnaɪtrɪl/ ('night-rill') is a common and acceptable American pronunciation, though the first syllable can also be pronounced like 'nit' (/ˈnɪtrɪl/).
Its primary industrial use is in the form of nitrile rubber (NBR) for making seals, gaskets, hoses, and disposable gloves that require oil and fuel resistance.