bn:00018917n
Noun Concept
Categories: Articles with permanently dead external links, Clocks, Horology, Navigational equipment
EN
chronometer  marine chronometer  Longitude clock  marine chronometers  Maritime horology
EN
An accurate clock (especially used in navigation) WordNet 3.0
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EN
A marine chronometer is a precision timepiece that is carried on a ship and employed in the determination of the ship's position by celestial navigation. Wikipedia
Portable timepiece Wikidata
An extremely accurate clock that is relatively unaffected by movement or temperature changes. OmegaWiki
A timepiece used as a portable time standard at sea so as to enable the determining of longitude by means of celestial navigation. Wiktionary
WordNet 3.0 & Open English WordNet
Wikipedia
Wikidata
Wiktionary
OmegaWiki