Concept set HORIZON

The apparent line that separates earth from sky, the line that divides all visible directions into two categories: those that intersect the Earth's surface, and those that do not.

Related concept sets

HORIZONlinkedLEVEL
HORIZONlinkedEND (OF SPACE)
END (OF SPACE)linkedHORIZON
Id Concept in source Conceptlist