/pah'seuh kahl"yeuh, pas'euh kal"-/ , n.
1. a slow, dignified dance of Spanish origin.
2. the music for this dance, based on an ostinato figure.
3. a musical form based on continuous variations over a ground bass.
[ 1650-60; pseudo-It sp. of earlier passacalle pasacalle lit., step (i.e., dance) in the street ( pasa 3d sing. pres. of pasar to step, PACE 1 + calle street callem, acc. of callis path) ]