| 释义 | 
		pen·ta·chord \ˈpentəˌkȯrd\ noun Etymology: Greek pentachordon, from neuter of pentachordos five-stringed, from penta- + -chordos stringed (from chordē string) — more at cord 1.  : an ancient musical instrument with five strings 2.  : a diatonic system of five tones |