Noah Webster's Dictionary (n.) A row of balusters topped by a rail, serving as an open parapet, as along the edge of a balcony, terrace, bridge, staircase, or the eaves of a building.

Multi-Version Concordance Balustrade (1 Occurrence) 1 Kings 10:12 And the king made of the sandal-wood a balustrade for the house of Jehovah, and for the king's house, and harps and lutes for the singers. There came no such sandal-wood, nor was there seen to this day.) (DBY)