NOUN | artifact | patent log, screw log, taffrail log | a cigar-shaped log with rotary fins that measure the ship's speed |
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Meaning | A cigar-shaped log with rotary fins that measure the ship's speed. | |
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Synonyms | screw log, taffrail log | |
Broader | log | 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 |
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