cardinal mark
English
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Balise-cardinale-Nord.jpg/150px-Balise-cardinale-Nord.jpg)
Noun
cardinal mark (plural cardinal marks)
- (nautical) A sea mark (a buoy or other floating or fixed structure) used in pilotage to indicate the position of a hazard and the direction of safe water.
Translations
type of sea mark
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