- The definition of a balustrade is a railing that is held up by supporting posts.
An example of a balustrade is the railing on the top of a long railing around a deck.
An old balustrade supported by balusters.Licensed from iStockPhoto
Origin: French balustrade ; from Italian balaustrata ; from balaustro: see baluster
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Origin: French, from Italian balaustrata, from balaustro, baluster; see baluster.