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واژگارchannel
انگلیسی
channel (n.) early 14c., "bed of a stream of water," from Old French chanel "bed of a waterway; tube, pipe, gutter," from Latin canalis "groove, channel, waterpipe" (see canal). Given a broader, figurative sense by 1530s: "that by which something passes or is transmitted" (of information, commerce, etc.); meaning "circuit for telegraph communication" (1848) probably led to that of "band of frequency for radio or TV signals" (1928).