corpus callosum: meaning, definition, pronunciation and examples
LowTechnical/Medical/Academic
Quick answer
What does “corpus callosum” mean?
The broad band of nerve fibers connecting the two cerebral hemispheres of the brain, enabling communication between them.
Audio
Pronunciation
Definition
Meaning and Definition
The broad band of nerve fibers connecting the two cerebral hemispheres of the brain, enabling communication between them.
In neuroscience and medicine, it refers specifically to the largest white matter structure in the brain, crucial for integrating motor, sensory, and cognitive functions between hemispheres. In metaphorical usage, it can represent connection or integration between two distinct entities.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Both varieties use the same Latin term with identical pronunciation conventions in medical contexts.
Connotations
Purely technical/medical term in both varieties with no cultural or connotative differences.
Frequency
Equally low frequency in both varieties, appearing almost exclusively in medical, neuroscience, and academic psychology contexts.
Grammar
How to Use “corpus callosum” in a Sentence
The corpus callosum connects [the two hemispheres]Damage to the corpus callosum results in [specific symptoms]The size of the corpus callosum correlates with [cognitive function]Vocabulary
Collocations
Examples
Examples of “corpus callosum” in a Sentence
verb
British English
- The hemispheres communicate via the corpus callosum.
- Researchers study how information is corpus callosum-mediated.
American English
- The brain hemispheres corpus callosum-connect for integrated function.
- Neural signals corpus callosum-cross between hemispheres.
adverb
British English
- The signals travelled corpus callosum-wise between hemispheres.
- Information transfer occurred corpus callosum-efficiently.
American English
- Neural communication happens corpus callosum-directly.
- The hemispheres interact corpus callosum-rapidly.
adjective
British English
- The corpus callosal fibres showed increased myelination.
- Corpus callosum abnormalities were detected on the MRI scan.
American English
- The corpus callosal region demonstrated unusual activity.
- Corpus callosum connectivity was measured using DTI.
Usage
Meaning in Context
Business
Virtually never used
Academic
Common in neuroscience, psychology, and medical research papers
Everyday
Extremely rare outside medical discussions or educational contexts
Technical
Standard term in neurology, neurosurgery, and neuroimaging
Vocabulary
Synonyms of “corpus callosum”
Strong
Neutral
Weak
Vocabulary
Antonyms of “corpus callosum”
Watch out
Common Mistakes When Using “corpus callosum”
- Using plural 'corpus callosums' instead of 'corpora callosa'
- Misspelling as 'corpus colossum' or 'corpus callous'
- Pronouncing 'callosum' with hard 'c' (/kæləʊsəm/) instead of soft 'c' (/kəloʊsəm/)
FAQ
Frequently Asked Questions
Yes, some people are born with agenesis of the corpus callosum (complete or partial absence) and can live relatively normal lives, though they may experience specific cognitive or coordination challenges.
Research shows relative to brain size, the corpus callosum tends to be larger in women, though the functional significance of this difference remains debated in neuroscience.
Damage can cause disconnection syndromes where the hemispheres cannot communicate properly, potentially leading to alien hand syndrome, apraxia, or difficulties with bimanual coordination.
The name comes from Latin: 'corpus' meaning 'body' and 'callosum' meaning 'hard' or 'tough', referring to its tough, fibrous appearance in dissection.
The broad band of nerve fibers connecting the two cerebral hemispheres of the brain, enabling communication between them.
Corpus callosum is usually technical/medical/academic in register.
Corpus callosum: in British English it is pronounced /ˌkɔː.pəs kəˈləʊ.səm/, and in American English it is pronounced /ˌkɔːr.pəs kəˈloʊ.səm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None - too technical for idiomatic usage”
Learning
Memory Aids
Mnemonic
Imagine a CALLOSUM (sounds like 'call them') - it CALLS between the two brain hemispheres to help them communicate.
Conceptual Metaphor
THE BRAIN'S INFORMATION HIGHWAY / THE HEMISPHERES' TELEPHONE LINE
Practice
Quiz
What is the primary function of the corpus callosum?