The noun CONTINENTAL DIVIDE has 1 sense: 1. the watershed of a continent (especially the watershed of North America formed by a series of mountain ridges extending from Alaska to Mexico). Familiarity information: CONTINENTAL DIVIDE used as a noun is very rare.Dictionary entry details.eronyms (parts of continental divide): Great Divide (that part of the continental divide formed by the Rocky Mountains in the United States). Domain region: North America (a continent (the third largest) in the western hemisphere connected to South America by the Isthmus of Panama).
Definition of lighthouse. 1  1 : a structure (such as a tower) with a powerful light that gives a continuous or intermittent signal to navigators. 2  2 : beacon 3.
They knew that the harbor was near, and they had to steer. This structure helped the sailors for 1500 years before an earthquake destroyed it. Pharos is a Greek word for a lighthouse, and that is why the people who study (or are interested in) lighthouses are called pharologists. For the light wood was burned at first. Slowly, people realized that oil lamps work better, and their light could be seen from a far distance.