omasum
noun
oma·sum
Å-ˈmÄ-sÉ™m 
plural omasa
Å-ˈmÄ-sÉ™
: the third chamber of the ruminant stomach that is situated between the reticulum and the abomasum compare rumen
Cite this Entry
“Omasum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/omasum. Accessed 27 Mar. 2026.
Copy CitationMedical Definition
omasum
noun
oma·sum
Å-ˈmÄ-sÉ™m
plural omasa
-sÉ™
: the third chamber of the ruminant stomach that is situated between the reticulum and the abomasum
called also manyplies, psalterium
compare rumenLove words? Need even more definitions?
Merriam-Webster unabridged
