BAILY'S BEADS

add. ·- a row of bright spots observed in connection with total eclipses of the sun. just before and after a total eclipse, the slender, unobscured crescent of the sun's disk appears momentarily like a row of bright spots resembling a string of beads. the phenomenon (first fully described by francis baily, 1774 - 1844) is thought to be an effect of irradiation, and of inequalities of the moon's edge.