Source : Webster's Revised Unabridged Dictionary (1913)

Parquet circle \Parquet circle\
   That part of the lower floor of a theater with seats at the
   rear of the parquet and beneath the galleries; -- called
   also, esp. in U. S., {orchestra circle} or {parterre}.

Source : WordNet®

parquet circle
     n : seating at the rear of the main floor (beneath the
         balconies) [syn: {parterre}]