Used in the context of general equities. Order to buy or sell a stated amount of a security at the most advantageous price obtainable after the order is represented in the trading crowd . You cannot specify 'special restrictions' such as All or none (AON) or Good 'til cancelled order (GTC) on market orders. See: limit order .
Meaning of MARKET ORDER in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012