third stomach thirdsman • third tonsil · · · Info · Definitions · Synonyms · Characters · · third stomach · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) the third compartment of the stomach of a ruminant. Synonyms: psalterium, omasum, third stomach. · · Noun Definition 1 Synonyms · · · psalterium · · Synonym 1 omasum · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 h latin small letter h U+0068 i latin small letter i U+0069 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074