nerve fiber

C1
UK/ˈnɜːv ˌfaɪ.bə/US/ˈnɝːv ˌfaɪ.bɚ/

Technical / Medical / Academic

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Definition

Meaning

A long, slender projection of a nerve cell (neuron) that conducts electrical impulses away from the cell body.

The fundamental structural and functional unit of the nervous system, responsible for transmitting signals; also used metaphorically to describe a source of courage or resilience in a person's character.

Linguistics

Semantic Notes

The primary meaning is anatomical/biological. In extended metaphorical use, it is often pluralised ('nerve fibres') and refers to the physical or psychological makeup that gives someone strength.

Dialectal Variation

British vs American Usage

Differences

Spelling: British English uses 'fibre', American English uses 'fiber'. The spelling is the only consistent difference.

Connotations

Identical in both variants. The metaphorical use is equally understood but less frequent than the technical sense.

Frequency

Far more common in technical/medical contexts than in everyday speech in both varieties.

Vocabulary

Collocations

strong
damage to nerve fibressensory nerve fibremotor nerve fibremyelinated nerve fibrebundle of nerve fibres
medium
transmit along nerve fibresimpulses in nerve fibresregeneration of nerve fibresconnect via nerve fibres
weak
delicate nerve fibresingle nerve fibreessential nerve fibrecomplex nerve fibre

Grammar

Valency Patterns

Nerve fibre + verb (transmits, carries, conducts)Adjective (damaged, sensory) + nerve fibrePrepositional phrase (in the spinal cord, of the neuron) following nerve fibre

Vocabulary

Synonyms

Strong

neural filamentnerve axon

Neutral

axonneuronal process

Weak

nerve threadnerve strand

Vocabulary

Antonyms

nerve cell bodysomadendrite (receptive counterpart)

Phrases

Idioms & Phrases

  • to have nerves of steel (related metaphorical concept)
  • to get on someone's nerves (related lexical item)

Usage

Context Usage

Business

Rarely used, except possibly in biotechnology or health insurance contexts.

Academic

Common in biology, medicine, neuroscience, and psychology textbooks and research.

Everyday

Uncommon. If used, typically in a simplified explanation of health issues (e.g., 'a pinched nerve fibre').

Technical

The primary domain. Precisely used in neurology, anatomy, physiology, and medical diagnostics.

Examples

By Part of Speech

verb

British English

  • The signal is fibre-optically transmitted (analogous technical compound).

American English

  • The surgeon will carefully fiberize the area (invented, non-standard).

adjective

British English

  • The nerve-fibre layer was clearly visible under the microscope.

American English

  • He studied nerve-fiber regeneration in mice.

Examples

By CEFR Level

B1
  • The doctor explained that pain travels along tiny nerve fibres to the brain.
  • A serious injury can damage these nerve fibres.
B2
  • Multiple sclerosis is a disease that damages the protective sheath around nerve fibres.
  • Each nerve fibre is responsible for transmitting specific types of information, such as touch or temperature.
C1
  • The study focused on the differential conductivity of myelinated versus unmyelinated nerve fibres.
  • Advanced imaging techniques now allow us to visualise the degeneration of individual nerve fibres in vivo.

Learning

Memory Aids

Mnemonic

Think of a FIBRE optic cable carrying light signals; a NERVE FIBRE carries electrical signals in your body.

Conceptual Metaphor

THE NERVOUS SYSTEM IS A TELEPHONE/COMMUNICATION NETWORK (with nerve fibres as wires/cables).

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • Do not confuse with 'нервное волокно' (direct equivalent).
  • Avoid translating 'fibre' as 'клетчатка' (dietary fibre).
  • In metaphorical contexts, it does not map directly to 'сила воли' (willpower).

Common Mistakes

  • Misspelling 'fibre'/'fiber'.
  • Confusing 'nerve fibre' with the whole 'nerve' (which is a bundle of fibres).
  • Using it as a countable noun without an article ('Damage to nerve fibre' instead of 'a nerve fibre' or 'nerve fibres').

Practice

Quiz

Fill in the gap
Information from your fingertips travels to your brain via sensory .
Multiple Choice

What is the core function of a nerve fibre?

FAQ

Frequently Asked Questions

No. A single nerve fibre (axon) is part of a neuron. A 'nerve' is an anatomical structure containing many bundles of such fibres, along with connective tissue.

Yes, though less commonly than 'nerve' alone. E.g., 'The ordeal tested every nerve fibre in his body,' meaning it tested his utmost resilience.

British English spells it 'nerve fibre', American English uses 'nerve fiber'.

It is a standard term in neuroscience, human biology, medicine (especially neurology), physiology, and related life sciences.

nerve fiber - meaning, definition & pronunciation - English Dictionary | Lingvocore