Definition of psalterium in US English:



  • another term for omasum
    • ‘In the current study we analyzed the input–output relations in the entorhinal-dentate-hippocampal system, a major network involved in long-term memory. In anesthetized guinea pigs, the system was driven by activation of perforant path neurons in the entorhinal cortex (ENT), via presubicular fibers directly stimulated in the dorsal psalterium.’
    • ‘The dorsal psalterium (the dorsal hippocampal commissure) of the guinea pig was electrophysiologically studied with a view to possible commissural fiber groups and their properties.’


Mid 19th century: from Latin, literally ‘psalter’ (see psalter), because of its many folds of tissue, resembling pages of a book.