We Found 8 Definitions for
noun - The apparent intersection of the earth and sky as seen by an observer. Also called apparent horizon.
noun - Astronomy The sensible horizon.
noun - Astronomy The celestial horizon.
noun - Astronomy The limit of the theoretically possible universe.
noun - The range of one's knowledge, experience, or interest.
noun - Geology A specific position in a stratigraphic column, such as the location of one or more fossils, that serves to identify the stratum with a particular period.
noun - Geology A specific layer of soil or subsoil in a vertical cross section of land.
noun - Archaeology A period during which the influence of a specified culture spread rapidly over a defined area: artifacts associated with the Olmec horizon in Mesoamerica.