a. [ L. genethliacus, Gr. &unr_;, fr. &unr_; belonging to one's birth, gene`qlh birth, fr. gi`gnesqai to be born. ] Pertaining to nativities; calculated by astrologers; showing position of stars at one's birth. Howell. [ 1913 Webster ]

n. 1. A birthday poem. [ 1913 Webster ]

2. One skilled in genethliacs. [ 1913 Webster ]

a. Genethliac. [ 1913 Webster ]

n. The science of calculating nativities, or predicting the future events of life from the stars which preside at birth. Johnson. [ 1913 Webster ]