omasum

o·ma·sum

O0070400 (ō-mā′səm)n. pl. o·ma·sa (-sə) The third division of the stomach of a ruminant animal, located between the abomasum and the reticulum. Also called manyplies.

[Latin omāsum, bullock's tripe, probably of Gaulish origin.]

omasum

(əʊˈmeɪsəm) n, pl -sa (-sə) (Zoology) another name for psalterium[C18: from Latin: bullock's tripe]

o•ma•sum

(oʊˈmeɪ səm)

n., pl. -sa (-sə). the third stomach of a ruminant, between the reticulum and the abomasum. [1700–10; < New Latin; Latin omāsum ox's tripe]

o·ma·sum

(ō-mā′səm) The third division of the stomach in ruminant animals. It removes excess water from food and further reduces the size of food particles before passing them to the abomasum for digestion by enzymes. See more at ruminant.

Thesaurus

Noun

omasum - the third compartment of the stomach of a ruminantpsalterium, third stomachruminant - any of various cud-chewing hoofed mammals having a stomach divided into four (occasionally three) compartmentsstomach, tum, tummy, breadbasket - an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion

Translations

libroomaso

Omasum

enUK

omasum

[ō′mā·səm] (vertebrate zoology) The third chamber of the ruminant stomach where the contents are mixed to a more or less homogeneous state. Also known as manyplies; psalterium.

Omasum

one of the glandless sections in the multicompartmental stomach of ruminants (it is not present in Tragulidae and camels), located between the reticulum and abomasum. The mucous coat on the inner surface of the omasum, except for on the bottom, forms longitudinal folds of varying heights, or laminae that are similar to the pages of a book (hence the Russian name knizhka, literally “book”). These laminae are mobile, since they have smooth muscle. Thus, the cavity of the omasum is divided into narrow chambers and only at its base, which the free ends of the laminae do not reach, is there an integral cavity, the canal of the omasum. In the omasum the feed that has been swallowed again by the animal after rumination is finally ground down and converted into a gruel-like substance that passes into the abomasum. Along the bottom of the omasum there is an abomasal groove, the sulcus omasi, serving as a direct continuation of the reticular groove; liquified food can flow along it directly into the abomasum.

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Synonyms for omasum

noun the third compartment of the stomach of a ruminant

Synonyms

Related Words