Definitions from Wiktionary ( )

▸ noun:  The physical confine of a river or slough, consisting of a bed and banks.
▸ noun:  The natural or man-made deeper course through a reef, bar, bay, or any shallow body of water.
▸ noun:  The navigable part of a river.
▸ noun:  A narrow body of water between two land masses.
▸ noun:  Something through which another thing passes; a means of conveying or transmitting.
▸ noun:  (biochemistry) An ion channel: pore-forming proteins located in a cell membrane that allow specific ions to pass through.
▸ noun:  A gutter; a groove, as in a fluted column.
▸ noun:  (construction, mechanical engineering) A structural member with a cross section shaped like a squared-off letter C.
▸ noun:  (electronics) A connection between initiating and terminating nodes of a circuit.
▸ noun:  (electronics) The narrow conducting portion of a MOSFET transistor.
▸ noun:  (communication) The part that connects a data source to a data sink.
▸ noun:  (communication) A path for conveying electrical or electromagnetic signals, usually distinguished from other parallel paths.
▸ noun:  (communication) A single path provided by a transmission medium via physical separation, such as by multipair cable.
▸ noun:  (communication) A single path provided by a transmission medium via spectral or protocol separation, such as by frequency or time-division multiplexing.
▸ noun:  (broadcasting) A specific radio frequency or band of frequencies, usually in conjunction with a predetermined letter, number, or codeword, and allocated by international agreement.
▸ noun:  (broadcasting) A specific radio frequency or band of frequencies used for transmitting television.
▸ noun:  (storage) The portion of a storage medium, such as a track or a band, that is accessible to a given reading or writing station or head.
▸ noun:  The part of a turbine pump where the pressure is built up.
▸ noun:  (business, marketing) A distribution channel
▸ noun:  (Internet) A particular area for conversations on an IRC or similar network, analogous to a chat room and often dedicated to a specific topic.
▸ noun:  (Internet, historical) A means of delivering up-to-date Internet content via a push mechanism.
▸ noun:  A psychic or medium who temporarily takes on the personality of somebody else.
▸ verb:  (transitive) To make or cut a channel or groove in.
▸ verb:  (transitive) To direct or guide along a desired course.
▸ verb:  (transitive, of a spirit, as of a dead person) To serve as a medium for.
▸ verb:  (transitive) To follow as a model, especially in a performance.
▸ noun:  (nautical) The wale of a sailing ship which projects beyond the gunwale and to which the shrouds attach via the chains. One of the flat ledges of heavy plank bolted edgewise to the outside of a vessel, to increase the spread of the shrouds and carry them clear of the bulwarks.
▸ noun:  A former village and district of Channel-Port aux Basques, Newfoundland, Newfoundland and Labrador, Canada
▸ noun:  (Europe) Ellipsis of English Channel: A strait in Europe, separating Great Britain from France and connecting the North Sea to the Atlantic Ocean. [The arm of the Atlantic Ocean that separates the British Isles from northern France, and joins the North Sea to the Atlantic Ocean.]

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