Sinonim apparent horizon

English Thesaurus

1. the line at which the sky and Earth appear to meet (noun.location)

hypernym	:	line,
definition	:	a spatial location defined by a real or imaginary unidimensional extent (noun.location)

part meronym	:	linear perspective, perspective,
definition	:	the appearance of things relative to one another as determined by their distance from the viewer (noun.attribute)