babinski's reflex
C2 (Highly Specialised)Technical/Scientific/Medical
Definition
Meaning
A neurological reflex in infants where the big toe extends upward and the other toes fan out when the sole of the foot is stroked; in healthy adults, the toes curl downward.
A sign used in neurological examinations to assess the integrity of the corticospinal tract; its presence beyond infancy (or in adults) often indicates damage to the central nervous system, such as from a stroke or spinal cord injury.
Linguistics
Semantic Notes
This is an eponym (named after neurologist Joseph Babinski). It is a specific diagnostic sign with no figurative or slang meanings. The term is uncountable and primarily used in the singular, though 'Babinski reflexes' is possible when referring to multiple instances or testing.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning. British English may occasionally hyphenate as 'Babinski reflex' (without the possessive 's') slightly more often, but both forms are used interchangeably in both varieties.
Connotations
None beyond its strict medical meaning.
Frequency
Exclusively used in medical/neurological contexts in both regions. Frequency is identical and very low outside these fields.
Vocabulary
Collocations
Grammar
Valency Patterns
The neurologist tested for Babinski's reflex.The patient presented with a positive Babinski's reflex.Babinski's reflex was elicited bilaterally.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Not used.
Academic
Used in medical, neuroscience, and psychology textbooks and research papers.
Everyday
Not used except when discussing a specific medical diagnosis.
Technical
The primary context. Used in clinical neurology, paediatrics, physiotherapy, and related healthcare fields during patient assessment and documentation.
Examples
By Part of Speech
verb
British English
- The consultant will Babinski the patient to complete the examination.
- He Babinskied the sole firmly.
American English
- The physician needs to Babinski both feet.
- She Babinskied the infant during the check-up.
Examples
By CEFR Level
- The doctor checked the baby's reflexes, including the Babinski's reflex.
- A positive Babinski's reflex in an adult can be a serious neurological sign.
- Upon eliciting a bilateral Babinski's reflex, the neurologist ordered an immediate MRI of the brain and spinal cord.
- The disappearance of the primitive Babinski's reflex is a key milestone in normal infant neurological development.
Learning
Memory Aids
Mnemonic
Think of 'Babinski's BABY reflex': in Babies, the Big toe goes up And the others Bow out (fan). In adults, it's a Bad sign, suggesting Brain or spinal cord injury.
Conceptual Metaphor
N/A (Purely technical term).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not translate 'reflex' as 'рефлекс' in a general sense and then add a description. The established Russian medical term is 'рефлекс Бабинского'. Using a descriptive translation will sound non-native.
Common Mistakes
- Misspelling as 'Babinsky', 'Babinski', or 'Babinski reflex' (though the last is an accepted variant).
- Using it as a countable plural inappropriately (e.g., 'He has many Babinski's reflexes').
- Applying it figuratively (e.g., 'His Babinski's reflex was to argue').
Practice
Quiz
What does a positive Babinski's reflex indicate in an adult?
FAQ
Frequently Asked Questions
Joseph Babinski was a French-Polish neurologist who first described this reflex in 1896.
Yes, it is normal and expected in infants up to about 12-24 months of age. Its presence later in life is abnormal and requires medical investigation.
A blunt object is firmly stroked along the lateral aspect of the sole of the foot from the heel to the ball of the foot, then curving medially across the metatarsal pads.
The normal plantar reflex (or flexor plantar response), where all toes curl downward in response to the same stimulus.