Definitions for narrowcastˈnær oʊˌkæst, -ˌkɑst
Random House Webster's College Dictionary
nar•row•castˈnær oʊˌkæst, -ˌkɑst(v.i.)-cast; -cast•ed, -cast•ing.
to aim a radio or TV program or programming at a specific, limited audience or consumer market.
Category: Radio and Television, Showbiz
Origin of narrowcast:
A programme transmitted in this manner
To transmit a programme to selected individuals or groups, especially via cable
Origin: From narrow, by analogy with broadcast