large intestine
C1Technical/Academic, Medical, Everyday (general biology/health contexts)
Definition
Meaning
The final, wide section of the intestine in vertebrates, primarily responsible for absorbing water and salts from food matter that has already been digested in the small intestine, and for forming and storing faeces.
Can be used informally to emphasize a state of being full or the process of digestion (e.g., "feels like it's stuck in my large intestine"). In rare, humorous metaphors, it might refer to a convoluted or inefficient system.
Linguistics
Semantic Notes
Always a compound noun. Refers to a specific anatomical organ. Contrasts with 'small intestine', which is narrower and performs nutrient absorption. The term is more clinical than colloquial; in everyday speech, people are more likely to use 'bowel' or 'gut'.
Dialectal Variation
British vs American Usage
Differences
No significant difference in the term itself. UK English may use 'colon' more precisely in medical contexts for the main part of the large intestine. US English may use 'large bowel' interchangeably in medical communication.
Connotations
Identical connotations of a biological/medical term in both varieties.
Frequency
Frequency is similar. Slightly higher frequency in US English in public health/dietary advice media.
Vocabulary
Collocations
Grammar
Valency Patterns
The [ADJ] large intestine VERB-ed...The large intestine consists of...X is located in/part of the large intestine.The large intestine absorbs/forms...Vocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Not used.
Academic
Standard term in biology, medicine, and anatomy textbooks and research. "The microbiota of the large intestine plays a crucial role in metabolism."
Everyday
Used in health discussions, explanations of digestive problems, or dietary advice. "Fibre helps keep your large intestine healthy."
Technical
Precise anatomical and physiological term. Used in medical diagnoses, surgical reports, and pharmacological contexts. "The tumour was localised to the ascending colon of the large intestine."
Examples
By Part of Speech
adjective
British English
- large-intestine bacteria
- large-intestine function
American English
- large-intestine bacteria
- large-intestine function
Examples
By CEFR Level
- Food goes to the large intestine after the small intestine.
- The large intestine is shorter but wider than the small intestine.
- Drinking enough water is good for your large intestine.
- The primary role of the large intestine is to absorb water and electrolytes from indigestible food matter.
- Certain bacteria reside symbiotically in the human large intestine.
- Polyps detected in the large intestine during a colonoscopy require histological analysis to assess malignancy risk.
- The complex ecosystem of the large intestine's microbiome is increasingly linked to systemic immune function.
Learning
Memory Aids
Mnemonic
Think: 'LARGE' for the WIDER tube that handles the LARGER waste matter after the 'small' intestine has taken the nutrients.
Conceptual Metaphor
A WATER PROCESSING PLANT / A WASTE COMPACTION CHAMBER (absorbs water and compacts waste).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not translate as "большая кишка" word-for-word in a formal medical context; the standard term is "толстая кишка". "Большая кишка" is an understandable calque but not the correct anatomical term.
Common Mistakes
- Misspelling as 'large intestin'.
- Using it as a countable noun without 'the' (e.g., 'He has problem with large intestine').
- Confusing its primary function (water absorption/waste formation) with the small intestine's (nutrient absorption).
Practice
Quiz
What is the primary function of the large intestine?
FAQ
Frequently Asked Questions
The colon is the longest part of the large intestine, but the large intestine also includes the cecum and the rectum. In common usage, especially in medical contexts, 'colon' is often used to refer to the entire large intestine.
It is named for its diameter (width), not its length. The large intestine has a much wider lumen than the small intestine.
'Intestine' is the formal anatomical term. 'Bowel' is a more general, often clinical-everyday term that usually refers to the large intestine (e.g., 'bowel movement'). 'Bowel' can sound less technical.
Yes, it is possible to live without a large intestine through a surgical procedure called a colectomy. Waste elimination then occurs more frequently through an ileostomy or a reconstructed pouch, as the body loses its main site for water absorption from faeces.