chordan.索；腱chordn.弦；和弦；情绪Chord-power integrals弦幂积分chordomesodermal mantle中胚层索膜chordocentrous vertebra索体椎Chorda obliqua of elbow肘斜系带chorda mesodermal canal脊诵胚层囊chord deflection offset弦线偏距chorda ductus arteriosi[医] 动脉导管索, 动脉韧带chordal tooth thickness弦齿厚度chorda venae umbilicalis脐静脉索Chordae tendonae rupture瓣膜腱索断裂