— colonnaded , adj.
/kol'euh nayd"/ , n.
1. Archit. a series of regularly spaced columns supporting an entablature and usually one side of a roof. Cf. arcade .
2. a series of trees planted in a long row, as on each side of a driveway or road.
[ 1710-20; colonne COLUMN + -ade -ADE 1 , on the model of It colonnato ]