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measuring instrument that consists of a float that trails from a ship by a knotted line in order to measure the ship''s speed through the water a written record of events on a voyage (of a ship or plane) a written record of messages sent or received; "they kept a log of all transmission by the radio station"; "an email log" a segment of the trunk of a tree when stripped of branches enter into a log, as on ships and planes cut lumber, as in woods and forests the exponent required to produce a given number large log at the back of a hearth fire |
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