Definition of rumen in English:
rumen
nounPlural rumina, Plural rumens ˈruːmɛnˈrumən
Zoology The first stomach of a ruminant, which receives food or cud from the oesophagus, partly digests it with the aid of bacteria, and passes it to the reticulum.
Example sentencesExamples
- When calves are fed milk it is funnelled through the oesophageal groove to the true stomach, bypassing the rumen.
- Energy from the grain apparently helps complete the conversion of nitrate to bacterial protein in the rumen.
- Added fat at levels at or above 5% of the diet has been reported to impair fiber digestion in the rumen and to depress feed intake.
- So mammals are unable to digest cellulose, except some ruminants that have cellulase-secreting bacteria in their rumens.
- He was interested in improving digestive processes within the rumen, the first of the four stomachs of ruminant animals, where cellulose is broken down by bacteria.
Origin
Early 18th century: from Latin, literally 'throat'.