/ Dictionary / Index P psalterium: Meaning and Definition of Find definitions for: psal•te•ri•um Pronunciation: (sôl-tēr'ē-um), [key] — pl. -te•ri•a the omasum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: psalterium (Thesaurus) Psalter psaltery Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language