[pur-guh-luh] 
| 1. | an arbor formed of horizontal trelliswork supported on columns or posts, over which vines or other plants are trained. |
| 2. | a colonnade having the form of such an arbor. |
| per·go·la (pûr'gə-lə) n. An arbor or a passageway of columns supporting a roof of trelliswork on which climbing plants are trained to grow. [Italian, from Latin pergula.] |