6. Gold alloy â gold-colored mixture of gold, copper and other metals, and is used mainly for crowns, fixed bridges and some partial denture framework. 1  Advantages â good resistance to further decay if fits well; excellent durability-does not fracture under stress; does not corrode in the mouth.or more than 150 years, dental fillings known as amalgams have been widely used to treat tooth decay. Amalgam fillings are made of a mixture of metals. The ingredients include equal parts of elemental mercury (43 to 54 percent), and an alloy powder (46 to 57 percent) mainly composed of silver, tin, copper.
limit order. Definition. An order to a broker to buy a specified quantity of a security at or below a specified price, or to sell it at or above a specified price (called the limit price). This ensures that a person will never pay more for the stock than whatever price is set as his/her limit.
For instance, a limit order could be good until the end of the day or good until canceled. A limit order book is a list of all buy and sell limit orders in effect for a particular security. In after hours trading, a limit order is beneficial because lower volume can lead to greater price volatility.Rate this limit order definition...In trading, a limit order is an order to buy or sell securities for a fixed price or better. For example, an investor can place a limit order to sell shares of company ABC for $100 or more, even if the stock is currently trading for under $95.Such a limit order would be called an above the market order. A limit order can include instructions limiting the time it remains in effect.or instance, a limit order could be good until the end of the day or good until canceled. A limit order book is a list of all buy and sell limit orders in effect for a particular security. In after hours trading, a limit order is beneficial because lower volume can lead to greater price volatility.