Definition of "arcaded"

There they were, already, in the central hall, the great feature of the house, two storeys high, with an arcaded gallery on the upper level, and a giant chimneypiece made from bits of a baroque tomb.

2004, Alan Hollinghurst, chapter 3, in The Line of Beauty […], 1st US edition, New York, N.Y.: Bloomsbury Publishing

The station also boasts a large semi-domed French pavilion roof with fish-scale tiles and iron cresting, plus a rectangular hall with arcaded upper storey and wooden lantern.

2022 January 12, Paul Bigland, “Fab Four: the nation's finest stations: Eastbourne”, in RAIL, number 948, page 27