A market in which both bid and asked prices, good for the standard unit of trading, are quoted. Also, a situation where customers or market-makers are lined up on both sides ( buy and sell) of the stock .
TWO-SIDED MARKET
Meaning of TWO-SIDED MARKET in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012