psaltry SAHL-tree Your browser does not support the audio element. [ English ] Definition One of the ancestors of the dulcimer, the psaltry was a Medieval instrument, consisting of a soundbox over which a varying number of strings were stretched; these strings were plucked or bowed. The psaltry was similar to the modern zither. Share Share on Facebook (opens in a new tab) Share on X (opens in a new tab) Last Updated: 2016-06-06 20:45:56