(ˈsoʊ θɪk, ˈsɒθ ɪk) n. (in the ancient Egyptian calendar) a period of 1460 Sothic years. [1855–60]
Sothic cycle
Sothic cycle
[′sä·thik ‚sī·kəl] (astronomy) A time period of about 1460 years; this cycle is such that the New Year of the calendar used in ancient Egypt was in error by a whole year because the adopted year of 365 days is about a quarter of a day shorter than the mean solar year.