| 单词 | bissextus |
| 释义 | bissextus /buy seks"teuhs, bi-/, n. February 29th: the extra day added to the Julian calendar every fourth year (except those evenly divisible by 400) to compensate for the approximately six hours a year by which the common year of 365 days falls short of the solar year. [ < LL bissextus (dies) intercalary (day); see BIS1, SEXT; so called because the 6th day before the Calends of March (Feb. 24th) appeared twice every leap year] |
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