demyelinate
LowTechnical/Medical
Definition
Meaning
To remove or destroy the myelin sheath from a nerve fiber.
In broader contexts, to cause loss of myelin, often leading to impaired nerve function, as in neurological disorders.
Linguistics
Semantic Notes
Primarily used in medical and biological contexts to describe pathological processes affecting the nervous system; implies damage or degradation.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage; spelling and pronunciation are consistent across varieties.
Connotations
None beyond the technical medical context; carries a neutral clinical tone.
Frequency
Equally low in both British and American English, primarily found in specialized texts such as medical journals.
Vocabulary
Collocations
Grammar
Valency Patterns
Transitive verb: demyelinate + object (e.g., demyelinate axons)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Not applicable; rarely used in business contexts.
Academic
Common in medical, neurological, and biological research papers and textbooks.
Everyday
Very rare; only in discussions about specific medical conditions or advanced health topics.
Technical
Standard term in neurology and pathology for describing myelin loss in nerves.
Examples
By Part of Speech
verb
British English
- Multiple sclerosis can demyelinate the central nervous system over time.
American English
- The viral infection may demyelinate peripheral nerves, causing weakness.
adjective
British English
- She was referred to a specialist for a demyelinating disorder.
American English
- Demyelinating lesions are often detected through MRI scans.
Examples
By CEFR Level
- Doctors use the word 'demyelinate' when nerves lose their protective covering.
- In some diseases, the body's immune system attacks and demyelinates nerve fibers.
- Researchers are studying how environmental factors demyelinate axons in the spinal cord.
- Advanced neuroimaging allows observation of the mechanisms that demyelinate neurons in vivo.
Learning
Memory Aids
Mnemonic
Think of 'de-' as 'remove' and 'myelin' as 'insulation', so demyelinate means to remove the insulation from nerves, like stripping wires.
Conceptual Metaphor
Stripping insulation from electrical wires, leading to faulty signaling or short circuits in the nervous system.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct calque 'демиелинизировать' if not standard; use accepted medical terminology like 'демиелинизация' for the process or 'поражать миелиновую оболочку' for the action.
Common Mistakes
- Using 'demyelinate' intransitively (e.g., 'The nerves demyelinate') without an object; correct usage is typically transitive.
- Mispronouncing as 'dee-my-eh-line-ate' instead of 'dee-my-uh-lin-ate'.
Practice
Quiz
What is the primary meaning of 'demyelinate'?
FAQ
Frequently Asked Questions
It is primarily a verb, meaning to remove or destroy the myelin sheath.
No, it is a technical term mostly used in medical and scientific contexts, such as neurology.
The noun form is 'demyelination', which refers to the process or result of myelin loss.
Multiple sclerosis, Guillain-Barré syndrome, and acute disseminated encephalomyelitis are well-known demyelinating diseases.