v. nar·row·cast, nar·row·cast·ing, nar·row·casts v.tr. To communicate or transmit (a signal, a message, or content, such as audio or video programming) to a specific group of recipients simultaneously over a communication network: a mailing list narrowcasting marketing information over the internet. v.intr. To communicate or transmit a signal, a message, or content, such as audio or video programming, to a specific group of recipients simultaneously over a communication network. n. 1. The act or process of narrowcasting a signal, a message, or content, such as audio or video programming. 2. A signal, message, or audio or video program that is narrowcast over a communication network. [NARROW + (BROAD)CAST.] narrow·cast′er n. |
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