ghosting definition by American Heritage Dictionary
ghosting - Computer Definition
In broadcast television and poorly installed cable television, the effect of seeing faint duplicate images rather than a single strong image. Ghosting is the result of multipath fading as the signal breaks into multiple elements that travel different routes from transmitter to receiver and, therefore, arrive at different times. See also broadcast television, cable television, and multipath fading.
ghosting - Investment & Finance Definition
Collusion between at least two market makers (specialists who have been authorized to conduct trades in certain companies’ stock) to manipulate the price of a stock. Ghosting is accomplished by one firm pushing a stock price higher or lower, with the other firms following the first firm’s lead. The stock is sold at the new levels, resulting in a guaranteed profit. It is illegal because market makers are required to compete against each other and create a fair marketplace.