dog days(redirected from Dog day)
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Dog Days(religion, spiritualism, and occult)
Dog days are a 40-day period, usually given as July 3 to August 11, that is regarded as being the hottest time of the year. This period was originally calculated from the heliacal rising of Sirius, the Dog Star, after which dog days received its name.
dog days[′dȯg ‚dāz]
Although there are many different ways of calculating which days in any given year are the dog days, and how long they last, it is impossible to be precise. Nowadays it is generally assumed that they fall between July 3 and August 11—slightly later than they occurred in ancient times.
Because of their association with the Dog Star, various beliefs have sprung up involving the behavior of dogs during this period. In the 16th century it was believed that dogs went mad during the Dog Star season. Another name for this time of year, the canicular days, comes from the Latin word canis meaning "dog."
BkDays-1864, vol. II, p. 5
DictDays-1988, p. 32
DictFolkMyth-1984, p. 918
OxYear-1999, p. 595