omasum

noun

oma·​sum ō-ˈmā-səm How to pronounce omasum (audio)
plural omasa ō-ˈmā-sə How to pronounce omasum (audio)
: the third chamber of the ruminant stomach that is situated between the reticulum and the abomasum compare rumen

Word History

Etymology

borrowed from New Latin omāsum, going back to Latin, "oxʼs tripe," of obscure origin

First Known Use

1556, in the meaning defined above

Time Traveler
The first known use of omasum was in 1556

Dictionary Entries Near omasum

Cite this Entry

“Omasum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/omasum. Accessed 25 May. 2024.

Medical Definition

omasum

noun
oma·​sum ō-ˈmā-səm How to pronounce omasum (audio)
plural omasa -sə How to pronounce omasum (audio)
: the third chamber of the ruminant stomach that is situated between the reticulum and the abomasum

called also manyplies, psalterium

compare rumen

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