seating on the main floor between the orchestra and the parquet circle
source: WordNet 3.0
A body of seats on the floor of a music hall or theater nearest the orchestra; but commonly applied to the whole lower floor of a theater, from the orchestra to the dress circle; the pit.
source: Webster 1913
In various European public bourses, the railed-in space within which the "agents de change," or privileged brokers, conduct business; also, the business conducted by them; -- distinguished from the coulisse, or outside market.