- the fourth and last compartment of the stomach of ruminants, which receives and digests food from the psalterium and passes it on to the small intestine
WordReference Random House Unabridged Dictionary of American English © 2026
ab•o•ma•sus
(ab′ə mā′səs),USA pronunciation n., pl. -si (-sī).USA pronunciation
WordReference Random House Unabridged Dictionary of American English © 2026- Zoologyabomasum.
ab•o•ma•sum
(ab′ə mā′səm),USA pronunciation n., pl. -sa (-sə).USA pronunciation
- Zoologythe fourth or true stomach of cud-chewing animals, lying next to the omasum. See diag. under ruminant.
- Neo-Latin; see ab-, omasum
- 1700–10
Collins Concise English Dictionary © HarperCollins Publishers::
abomasum /ˌæbəˈmeɪsəm/, abomasus /ˌæbəˈmeɪsəs/ n ( pl -sa /-sə/, -si /-saɪ/)
'abomasus' also found in these entries (note: many are not synonyms or translations):