Emily Dickinson Lexicon

HOR'O-SCOPE, n. [Fr. from Gr. ὡροσκοπος; ὡρα, hour, and σκοπεω, to view or consider.]

1. In astrology, a scheme or figure of the twelve houses, or twelve signs of the zodiac, in which is marked the disposition of the heavens at a given time, and by which astrologers formerly told the fortunes of persons, according to the position of the stars at the time of their birth. Encyc.
2. The degree or point of the heavens arising above the eastern point of the horizon at any given time when a prediction is to be made of a future event. Encyc.