from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See patent log.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A mechanical device dragged from the stern of the vessel that indicates the vessel's speed through the water; usually consists of a propeller, a reading unit and a stiff line connecting them.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a cigar-shaped log with rotary fins that measure the ship's speed
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