Digital media player - Terminology. 1  Digital media players are also commonly referred to as a digital media extender, digital media streamer, digital media hub, digital media adapter, or digital media receiver (which should not be confused with AV Receiver that are also called Digital Media Renderer).
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DEFINITION of 'Gamma'. The rate of change for delta with respect to the underlying asset's price. Gamma is an important measure of the convexity of a derivative's value, in relation to the underlying. In a delta-hedge strategy, gamma is sought to be reduced in order to maintain a hedge over a wider price range.A consequence of reducing gamma, however, is that alpha too will be reduced.amma is an important measure of the convexity of a derivative's value, in relation to the underlying. In a delta-hedge strategy, gamma is sought to be reduced in order to maintain a hedge over a wider price range.