psalterium psalterist • psaltery · · · Info · Definitions · Synonyms · Characters · · psalterium · · Text Latin · · Script 10 · · Length Definitions · · · (noun) the third compartment of the stomach of a ruminant. Synonyms: omasum, third stomach. · · Noun Definition 1 Synonyms · · · omasum · · Synonym 1 third stomach · · Synonym 2 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075