Noun
1. a path over which electrical signals can pass;
"a channel is typically what you rent from a telephone company"2. a passage for water (or other fluids) to flow through;
"the fields were crossed with irrigation channels""gutters carried off the rainwater into a series of channels under the street"3. a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record)
4. a deep and relatively narrow body of water (as in a river or a harbor or a strait linking two larger bodies) that allows the best passage for vessels;
"the ship went aground in the channel"5. (often plural) a means of communication or access;
"it must go through official channels""lines of communication were set up between the two firms"6. a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance;
"the tear duct was obstructed""the alimentary canal""poison is released through a channel in the snake's fangs"7. a television station and its programs;
"a satellite TV channel""surfing through the channels""they offer more than one hundred channels"8. a way of selling a company's product either directly or via distributors;
"possible distribution channels are wholesalers or small retailers or retail chains or direct mailers or your own stores"