rumen
/'ru:min/
Definition
- Noun:
- The first stomach compartment of a ruminant animal: The "rumen" is the large, first chamber of the stomach in animals like cows, sheep, and goats. It serves as a fermentation vat where plant material is broken down by microorganisms before being regurgitated for further chewing.
Usage Examples
- Noun:
- The cow's rumen contains billions of bacteria and protozoa that help digest cellulose.
- Veterinarians can assess the health of a herd by examining the contents of a rumen sample.
Advanced Usage
"Rumen microbiology": The study of the microorganisms living in the rumen.
- Advances in rumen microbiology have led to more efficient animal feeds.
"Rumen fermentation": The anaerobic digestive process occurring in the rumen.
- Rumen fermentation produces volatile fatty acids, which are a major energy source for the animal.
Variants and Related Words
Ruminal (adj): Pertaining to the rumen.
- The vet diagnosed a ruminal infection.
Ruminant (n): An animal, such as a cow or deer, that has a rumen and chews cud.
- Cattle are classic examples of ruminants.
Synonyms
- First stomach
- Paunch (though this can be a more general term for a stomach or belly)
Related Phrases
(This word is a specific anatomical term and does not commonly form phrasal verbs or idioms.)
Noun
-
the first compartment of the stomach of a ruminant; here food is collected and returned to the mouth as cud for chewing
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