The Collaborative International Dictionary
Sea chart
Sea chart \Sea" chart`\ A chart or map on which the lines of the shore, islands, shoals, harbors, etc., are delineated.
Usage examples of "sea chart".
He pointed to a tiny pinpoint of light on the Norwegian Sea chart spread out beneath the glass on the plotting table.
When they reached Swift Enterprises, he took a rolled-up sea chart out of one of his suitcases and spread it on Tom's desk.